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Finding the Fourth Proportional to 8,306.60, 12,406.06 and 7,525.04

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Solution

The fourth proportional to 8,306.60, 12,406.06 and 7,525.04 is: 11,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.60 : 12,406.06 = 7,525.04 : x
  2. Step 2: Convert to fraction form
    8,306.60/12,406.06 = 7,525.04/x
  3. Step 3: Cross multiply
    8,306.60x = 12,406.06 × 7,525.04
  4. Step 4: Simplify right side
    8,306.60x = 93,356,016.90
  5. Step 5: Solve for x
    x = 93,356,016.90/8,306.60
  6. Step 6: Final answer
    x = 11,238.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.