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Finding the Fourth Proportional to 52,553.20, 78,829.80 and 48,252.40

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Solution

The fourth proportional to 52,553.20, 78,829.80 and 48,252.40 is: 72,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,553.20 : 78,829.80 = 48,252.40 : x
  2. Step 2: Convert to fraction form
    52,553.20/78,829.80 = 48,252.40/x
  3. Step 3: Cross multiply
    52,553.20x = 78,829.80 × 48,252.40
  4. Step 4: Simplify right side
    52,553.20x = 3,803,727,041.52
  5. Step 5: Solve for x
    x = 3,803,727,041.52/52,553.20
  6. Step 6: Final answer
    x = 72,378.60

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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.