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Finding the Fourth Proportional to 42,575.62, 63,878.01 and 16,287.88

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Solution

The fourth proportional to 42,575.62, 63,878.01 and 16,287.88 is: 24,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,575.62 : 63,878.01 = 16,287.88 : x
  2. Step 2: Convert to fraction form
    42,575.62/63,878.01 = 16,287.88/x
  3. Step 3: Cross multiply
    42,575.62x = 63,878.01 × 16,287.88
  4. Step 4: Simplify right side
    42,575.62x = 1,040,437,361.52
  5. Step 5: Solve for x
    x = 1,040,437,361.52/42,575.62
  6. Step 6: Final answer
    x = 24,437.40

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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.