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Finding the Fourth Proportional to 8,966.70, 13,443.98 and 4,580.55

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Solution

The fourth proportional to 8,966.70, 13,443.98 and 4,580.55 is: 6,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.70 : 13,443.98 = 4,580.55 : x
  2. Step 2: Convert to fraction form
    8,966.70/13,443.98 = 4,580.55/x
  3. Step 3: Cross multiply
    8,966.70x = 13,443.98 × 4,580.55
  4. Step 4: Simplify right side
    8,966.70x = 61,580,799.69
  5. Step 5: Solve for x
    x = 61,580,799.69/8,966.70
  6. Step 6: Final answer
    x = 6,867.72

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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.