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Finding the Fourth Proportional to 22,700,879.60, 34,051,319.40 and 18,669,801.20

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Solution

The fourth proportional to 22,700,879.60, 34,051,319.40 and 18,669,801.20 is: 28,004,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700,879.60 : 34,051,319.40 = 18,669,801.20 : x
  2. Step 2: Convert to fraction form
    22,700,879.60/34,051,319.40 = 18,669,801.20/x
  3. Step 3: Cross multiply
    22,700,879.60x = 34,051,319.40 × 18,669,801.20
  4. Step 4: Simplify right side
    22,700,879.60x = 635,731,363,795,703.25
  5. Step 5: Solve for x
    x = 635,731,363,795,703.25/22,700,879.60
  6. Step 6: Final answer
    x = 28,004,701.80

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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.