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Finding the Fourth Proportional to 8,459.10, 12,631.08 and 7,463.61

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Solution

The fourth proportional to 8,459.10, 12,631.08 and 7,463.61 is: 11,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.10 : 12,631.08 = 7,463.61 : x
  2. Step 2: Convert to fraction form
    8,459.10/12,631.08 = 7,463.61/x
  3. Step 3: Cross multiply
    8,459.10x = 12,631.08 × 7,463.61
  4. Step 4: Simplify right side
    8,459.10x = 94,273,455.00
  5. Step 5: Solve for x
    x = 94,273,455.00/8,459.10
  6. Step 6: Final answer
    x = 11,144.62

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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.