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Finding the Fourth Proportional to 52,409.60, 78,614.40 and 36,663.20

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Solution

The fourth proportional to 52,409.60, 78,614.40 and 36,663.20 is: 54,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,409.60 : 78,614.40 = 36,663.20 : x
  2. Step 2: Convert to fraction form
    52,409.60/78,614.40 = 36,663.20/x
  3. Step 3: Cross multiply
    52,409.60x = 78,614.40 × 36,663.20
  4. Step 4: Simplify right side
    52,409.60x = 2,882,255,470.08
  5. Step 5: Solve for x
    x = 2,882,255,470.08/52,409.60
  6. Step 6: Final answer
    x = 54,994.80

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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.