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Finding the Fourth Proportional to 66,957.14, 100,435.71 and 25,404.14

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Solution

The fourth proportional to 66,957.14, 100,435.71 and 25,404.14 is: 38,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,957.14 : 100,435.71 = 25,404.14 : x
  2. Step 2: Convert to fraction form
    66,957.14/100,435.71 = 25,404.14/x
  3. Step 3: Cross multiply
    66,957.14x = 100,435.71 × 25,404.14
  4. Step 4: Simplify right side
    66,957.14x = 2,551,482,837.84
  5. Step 5: Solve for x
    x = 2,551,482,837.84/66,957.14
  6. Step 6: Final answer
    x = 38,106.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.