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Finding the Fourth Proportional to 10,885.58, 15,022.03 and 5,917.58

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Solution

The fourth proportional to 10,885.58, 15,022.03 and 5,917.58 is: 8,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.58 : 15,022.03 = 5,917.58 : x
  2. Step 2: Convert to fraction form
    10,885.58/15,022.03 = 5,917.58/x
  3. Step 3: Cross multiply
    10,885.58x = 15,022.03 × 5,917.58
  4. Step 4: Simplify right side
    10,885.58x = 88,894,064.29
  5. Step 5: Solve for x
    x = 88,894,064.29/10,885.58
  6. Step 6: Final answer
    x = 8,166.22

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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.