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Finding the Fourth Proportional to 53,886.68, 74,360.68 and 29,686.86

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Solution

The fourth proportional to 53,886.68, 74,360.68 and 29,686.86 is: 40,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,886.68 : 74,360.68 = 29,686.86 : x
  2. Step 2: Convert to fraction form
    53,886.68/74,360.68 = 29,686.86/x
  3. Step 3: Cross multiply
    53,886.68x = 74,360.68 × 29,686.86
  4. Step 4: Simplify right side
    53,886.68x = 2,207,535,096.66
  5. Step 5: Solve for x
    x = 2,207,535,096.66/53,886.68
  6. Step 6: Final answer
    x = 40,966.25

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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.