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Finding the Fourth Proportional to 63,878.90, 95,369.18 and 48,807.12

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Solution

The fourth proportional to 63,878.90, 95,369.18 and 48,807.12 is: 72,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,878.90 : 95,369.18 = 48,807.12 : x
  2. Step 2: Convert to fraction form
    63,878.90/95,369.18 = 48,807.12/x
  3. Step 3: Cross multiply
    63,878.90x = 95,369.18 × 48,807.12
  4. Step 4: Simplify right side
    63,878.90x = 4,654,695,400.70
  5. Step 5: Solve for x
    x = 4,654,695,400.70/63,878.90
  6. Step 6: Final answer
    x = 72,867.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.