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Finding the Fourth Proportional to 17,957.28, 26,939.52 and 7,569.12

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Solution

The fourth proportional to 17,957.28, 26,939.52 and 7,569.12 is: 11,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.28 : 26,939.52 = 7,569.12 : x
  2. Step 2: Convert to fraction form
    17,957.28/26,939.52 = 7,569.12/x
  3. Step 3: Cross multiply
    17,957.28x = 26,939.52 × 7,569.12
  4. Step 4: Simplify right side
    17,957.28x = 203,908,459.62
  5. Step 5: Solve for x
    x = 203,908,459.62/17,957.28
  6. Step 6: Final answer
    x = 11,355.20

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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.