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Finding the Fourth Proportional to 71,654.87, 107,482.55 and 21,735.39

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Solution

The fourth proportional to 71,654.87, 107,482.55 and 21,735.39 is: 32,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,654.87 : 107,482.55 = 21,735.39 : x
  2. Step 2: Convert to fraction form
    71,654.87/107,482.55 = 21,735.39/x
  3. Step 3: Cross multiply
    71,654.87x = 107,482.55 × 21,735.39
  4. Step 4: Simplify right side
    71,654.87x = 2,336,175,033.77
  5. Step 5: Solve for x
    x = 2,336,175,033.77/71,654.87
  6. Step 6: Final answer
    x = 32,603.16

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1.5x scale

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.