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Finding the Fourth Proportional to 16,612.80, 24,923.60 and 7,248.80

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Solution

The fourth proportional to 16,612.80, 24,923.60 and 7,248.80 is: 10,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,612.80 : 24,923.60 = 7,248.80 : x
  2. Step 2: Convert to fraction form
    16,612.80/24,923.60 = 7,248.80/x
  3. Step 3: Cross multiply
    16,612.80x = 24,923.60 × 7,248.80
  4. Step 4: Simplify right side
    16,612.80x = 180,666,191.68
  5. Step 5: Solve for x
    x = 180,666,191.68/16,612.80
  6. Step 6: Final answer
    x = 10,875.12

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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.