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Finding the Fourth Proportional to 29,572.65, 40,810.20 and 18,962.25

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Solution

The fourth proportional to 29,572.65, 40,810.20 and 18,962.25 is: 26,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,572.65 : 40,810.20 = 18,962.25 : x
  2. Step 2: Convert to fraction form
    29,572.65/40,810.20 = 18,962.25/x
  3. Step 3: Cross multiply
    29,572.65x = 40,810.20 × 18,962.25
  4. Step 4: Simplify right side
    29,572.65x = 773,853,214.95
  5. Step 5: Solve for x
    x = 773,853,214.95/29,572.65
  6. Step 6: Final answer
    x = 26,167.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.