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Finding the Fourth Proportional to 50,486.60, 75,729.90 and 14,949.20

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Solution

The fourth proportional to 50,486.60, 75,729.90 and 14,949.20 is: 22,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486.60 : 75,729.90 = 14,949.20 : x
  2. Step 2: Convert to fraction form
    50,486.60/75,729.90 = 14,949.20/x
  3. Step 3: Cross multiply
    50,486.60x = 75,729.90 × 14,949.20
  4. Step 4: Simplify right side
    50,486.60x = 1,132,101,421.08
  5. Step 5: Solve for x
    x = 1,132,101,421.08/50,486.60
  6. Step 6: Final answer
    x = 22,423.80

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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.