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Finding the Fourth Proportional to 42,464.88, 63,697.12 and 10,874.88

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Solution

The fourth proportional to 42,464.88, 63,697.12 and 10,874.88 is: 16,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,464.88 : 63,697.12 = 10,874.88 : x
  2. Step 2: Convert to fraction form
    42,464.88/63,697.12 = 10,874.88/x
  3. Step 3: Cross multiply
    42,464.88x = 63,697.12 × 10,874.88
  4. Step 4: Simplify right side
    42,464.88x = 692,698,536.35
  5. Step 5: Solve for x
    x = 692,698,536.35/42,464.88
  6. Step 6: Final answer
    x = 16,312.27

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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.