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Finding the Fourth Proportional to 18,098.32, 27,128.10 and 7,565.64

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Solution

The fourth proportional to 18,098.32, 27,128.10 and 7,565.64 is: 11,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.32 : 27,128.10 = 7,565.64 : x
  2. Step 2: Convert to fraction form
    18,098.32/27,128.10 = 7,565.64/x
  3. Step 3: Cross multiply
    18,098.32x = 27,128.10 × 7,565.64
  4. Step 4: Simplify right side
    18,098.32x = 205,241,438.48
  5. Step 5: Solve for x
    x = 205,241,438.48/18,098.32
  6. Step 6: Final answer
    x = 11,340.36

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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.