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Finding the Fourth Proportional to 8,951.12, 12,352.53 and 4,972.60

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Solution

The fourth proportional to 8,951.12, 12,352.53 and 4,972.60 is: 6,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.12 : 12,352.53 = 4,972.60 : x
  2. Step 2: Convert to fraction form
    8,951.12/12,352.53 = 4,972.60/x
  3. Step 3: Cross multiply
    8,951.12x = 12,352.53 × 4,972.60
  4. Step 4: Simplify right side
    8,951.12x = 61,424,190.68
  5. Step 5: Solve for x
    x = 61,424,190.68/8,951.12
  6. Step 6: Final answer
    x = 6,862.18

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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.