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Finding the Fourth Proportional to 8,784.66, 13,177.01 and 3,590.54

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Solution

The fourth proportional to 8,784.66, 13,177.01 and 3,590.54 is: 5,385.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.66 : 13,177.01 = 3,590.54 : x
  2. Step 2: Convert to fraction form
    8,784.66/13,177.01 = 3,590.54/x
  3. Step 3: Cross multiply
    8,784.66x = 13,177.01 × 3,590.54
  4. Step 4: Simplify right side
    8,784.66x = 47,312,581.49
  5. Step 5: Solve for x
    x = 47,312,581.49/8,784.66
  6. Step 6: Final answer
    x = 5,385.82

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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.