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Finding the Fourth Proportional to 42,464.90, 63,697.17 and 10,874.90

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Solution

The fourth proportional to 42,464.90, 63,697.17 and 10,874.90 is: 16,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,464.90 : 63,697.17 = 10,874.90 : x
  2. Step 2: Convert to fraction form
    42,464.90/63,697.17 = 10,874.90/x
  3. Step 3: Cross multiply
    42,464.90x = 63,697.17 × 10,874.90
  4. Step 4: Simplify right side
    42,464.90x = 692,700,354.03
  5. Step 5: Solve for x
    x = 692,700,354.03/42,464.90
  6. Step 6: Final answer
    x = 16,312.30

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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.