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Finding the Fourth Proportional to 38,513.76, 53,064.48 and 25,916.64

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Solution

The fourth proportional to 38,513.76, 53,064.48 and 25,916.64 is: 35,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.76 : 53,064.48 = 25,916.64 : x
  2. Step 2: Convert to fraction form
    38,513.76/53,064.48 = 25,916.64/x
  3. Step 3: Cross multiply
    38,513.76x = 53,064.48 × 25,916.64
  4. Step 4: Simplify right side
    38,513.76x = 1,375,253,024.95
  5. Step 5: Solve for x
    x = 1,375,253,024.95/38,513.76
  6. Step 6: Final answer
    x = 35,708.10

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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.