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Finding the Fourth Proportional to 29,189.80, 40,280.25 and 17,254.27

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Solution

The fourth proportional to 29,189.80, 40,280.25 and 17,254.27 is: 23,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,189.80 : 40,280.25 = 17,254.27 : x
  2. Step 2: Convert to fraction form
    29,189.80/40,280.25 = 17,254.27/x
  3. Step 3: Cross multiply
    29,189.80x = 40,280.25 × 17,254.27
  4. Step 4: Simplify right side
    29,189.80x = 695,006,309.17
  5. Step 5: Solve for x
    x = 695,006,309.17/29,189.80
  6. Step 6: Final answer
    x = 23,809.90

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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.