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Finding the Fourth Proportional to 8,859,563.70, 13,289,345.55 and 8,775,582.90

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Solution

The fourth proportional to 8,859,563.70, 13,289,345.55 and 8,775,582.90 is: 13,163,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,563.70 : 13,289,345.55 = 8,775,582.90 : x
  2. Step 2: Convert to fraction form
    8,859,563.70/13,289,345.55 = 8,775,582.90/x
  3. Step 3: Cross multiply
    8,859,563.70x = 13,289,345.55 × 8,775,582.90
  4. Step 4: Simplify right side
    8,859,563.70x = 116,621,753,560,771.11
  5. Step 5: Solve for x
    x = 116,621,753,560,771.11/8,859,563.70
  6. Step 6: Final answer
    x = 13,163,374.35

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.