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Finding the Fourth Proportional to 29,253.89, 40,370.19 and 15,825.11

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Solution

The fourth proportional to 29,253.89, 40,370.19 and 15,825.11 is: 21,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,253.89 : 40,370.19 = 15,825.11 : x
  2. Step 2: Convert to fraction form
    29,253.89/40,370.19 = 15,825.11/x
  3. Step 3: Cross multiply
    29,253.89x = 40,370.19 × 15,825.11
  4. Step 4: Simplify right side
    29,253.89x = 638,862,495.62
  5. Step 5: Solve for x
    x = 638,862,495.62/29,253.89
  6. Step 6: Final answer
    x = 21,838.55

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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.