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Finding the Fourth Proportional to 12,306.60, 16,983.12 and 7,001.04

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Solution

The fourth proportional to 12,306.60, 16,983.12 and 7,001.04 is: 9,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.60 : 16,983.12 = 7,001.04 : x
  2. Step 2: Convert to fraction form
    12,306.60/16,983.12 = 7,001.04/x
  3. Step 3: Cross multiply
    12,306.60x = 16,983.12 × 7,001.04
  4. Step 4: Simplify right side
    12,306.60x = 118,899,502.44
  5. Step 5: Solve for x
    x = 118,899,502.44/12,306.60
  6. Step 6: Final answer
    x = 9,661.44

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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.