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Finding the Fourth Proportional to 29,588.85, 40,828.92 and 17,487.90

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Solution

The fourth proportional to 29,588.85, 40,828.92 and 17,487.90 is: 24,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,588.85 : 40,828.92 = 17,487.90 : x
  2. Step 2: Convert to fraction form
    29,588.85/40,828.92 = 17,487.90/x
  3. Step 3: Cross multiply
    29,588.85x = 40,828.92 × 17,487.90
  4. Step 4: Simplify right side
    29,588.85x = 714,012,070.07
  5. Step 5: Solve for x
    x = 714,012,070.07/29,588.85
  6. Step 6: Final answer
    x = 24,131.12

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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.