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Finding the Fourth Proportional to 8,793.65, 12,134.08 and 5,392.18

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Solution

The fourth proportional to 8,793.65, 12,134.08 and 5,392.18 is: 7,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.65 : 12,134.08 = 5,392.18 : x
  2. Step 2: Convert to fraction form
    8,793.65/12,134.08 = 5,392.18/x
  3. Step 3: Cross multiply
    8,793.65x = 12,134.08 × 5,392.18
  4. Step 4: Simplify right side
    8,793.65x = 65,429,116.11
  5. Step 5: Solve for x
    x = 65,429,116.11/8,793.65
  6. Step 6: Final answer
    x = 7,440.50

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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.