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Finding the Fourth Proportional to 10,885.59, 15,022.13 and 6,412.13

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Solution

The fourth proportional to 10,885.59, 15,022.13 and 6,412.13 is: 8,848.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.59 : 15,022.13 = 6,412.13 : x
  2. Step 2: Convert to fraction form
    10,885.59/15,022.13 = 6,412.13/x
  3. Step 3: Cross multiply
    10,885.59x = 15,022.13 × 6,412.13
  4. Step 4: Simplify right side
    10,885.59x = 96,323,743.27
  5. Step 5: Solve for x
    x = 96,323,743.27/10,885.59
  6. Step 6: Final answer
    x = 8,848.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.