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Finding the Fourth Proportional to 11,248.80, 16,873.20 and 9,061.80

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Solution

The fourth proportional to 11,248.80, 16,873.20 and 9,061.80 is: 13,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.80 : 16,873.20 = 9,061.80 : x
  2. Step 2: Convert to fraction form
    11,248.80/16,873.20 = 9,061.80/x
  3. Step 3: Cross multiply
    11,248.80x = 16,873.20 × 9,061.80
  4. Step 4: Simplify right side
    11,248.80x = 152,901,563.76
  5. Step 5: Solve for x
    x = 152,901,563.76/11,248.80
  6. Step 6: Final answer
    x = 13,592.70

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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.