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Finding the Fourth Proportional to 32,187.60, 48,279.60 and 10,000.80

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Solution

The fourth proportional to 32,187.60, 48,279.60 and 10,000.80 is: 15,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,187.60 : 48,279.60 = 10,000.80 : x
  2. Step 2: Convert to fraction form
    32,187.60/48,279.60 = 10,000.80/x
  3. Step 3: Cross multiply
    32,187.60x = 48,279.60 × 10,000.80
  4. Step 4: Simplify right side
    32,187.60x = 482,834,623.68
  5. Step 5: Solve for x
    x = 482,834,623.68/32,187.60
  6. Step 6: Final answer
    x = 15,000.64

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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.