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Finding the Fourth Proportional to 8,473.91, 12,712.14 and 2,925.81

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Solution

The fourth proportional to 8,473.91, 12,712.14 and 2,925.81 is: 4,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.91 : 12,712.14 = 2,925.81 : x
  2. Step 2: Convert to fraction form
    8,473.91/12,712.14 = 2,925.81/x
  3. Step 3: Cross multiply
    8,473.91x = 12,712.14 × 2,925.81
  4. Step 4: Simplify right side
    8,473.91x = 37,193,306.33
  5. Step 5: Solve for x
    x = 37,193,306.33/8,473.91
  6. Step 6: Final answer
    x = 4,389.16

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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.