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Finding the Fourth Proportional to 8,951.59, 12,352.86 and 4,972.96

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Solution

The fourth proportional to 8,951.59, 12,352.86 and 4,972.96 is: 6,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.59 : 12,352.86 = 4,972.96 : x
  2. Step 2: Convert to fraction form
    8,951.59/12,352.86 = 4,972.96/x
  3. Step 3: Cross multiply
    8,951.59x = 12,352.86 × 4,972.96
  4. Step 4: Simplify right side
    8,951.59x = 61,430,278.67
  5. Step 5: Solve for x
    x = 61,430,278.67/8,951.59
  6. Step 6: Final answer
    x = 6,862.50

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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.