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Finding the Fourth Proportional to 52,645.70, 78,968.55 and 48,344.90

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Solution

The fourth proportional to 52,645.70, 78,968.55 and 48,344.90 is: 72,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,645.70 : 78,968.55 = 48,344.90 : x
  2. Step 2: Convert to fraction form
    52,645.70/78,968.55 = 48,344.90/x
  3. Step 3: Cross multiply
    52,645.70x = 78,968.55 × 48,344.90
  4. Step 4: Simplify right side
    52,645.70x = 3,817,726,652.90
  5. Step 5: Solve for x
    x = 3,817,726,652.90/52,645.70
  6. Step 6: Final answer
    x = 72,517.35

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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.