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Finding the Fourth Proportional to 11,565.96, 17,420.98 and 10,754.88

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Solution

The fourth proportional to 11,565.96, 17,420.98 and 10,754.88 is: 16,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,565.96 : 17,420.98 = 10,754.88 : x
  2. Step 2: Convert to fraction form
    11,565.96/17,420.98 = 10,754.88/x
  3. Step 3: Cross multiply
    11,565.96x = 17,420.98 × 10,754.88
  4. Step 4: Simplify right side
    11,565.96x = 187,360,549.38
  5. Step 5: Solve for x
    x = 187,360,549.38/11,565.96
  6. Step 6: Final answer
    x = 16,199.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.