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Finding the Fourth Proportional to 8,795.20, 13,192.80 and 8,046.40

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Solution

The fourth proportional to 8,795.20, 13,192.80 and 8,046.40 is: 12,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.20 : 13,192.80 = 8,046.40 : x
  2. Step 2: Convert to fraction form
    8,795.20/13,192.80 = 8,046.40/x
  3. Step 3: Cross multiply
    8,795.20x = 13,192.80 × 8,046.40
  4. Step 4: Simplify right side
    8,795.20x = 106,154,545.92
  5. Step 5: Solve for x
    x = 106,154,545.92/8,795.20
  6. Step 6: Final answer
    x = 12,069.60

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1.5x scale

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.