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Finding the Fourth Proportional to 8,632.79, 12,971.08 and 8,052.32

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Solution

The fourth proportional to 8,632.79, 12,971.08 and 8,052.32 is: 12,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.79 : 12,971.08 = 8,052.32 : x
  2. Step 2: Convert to fraction form
    8,632.79/12,971.08 = 8,052.32/x
  3. Step 3: Cross multiply
    8,632.79x = 12,971.08 × 8,052.32
  4. Step 4: Simplify right side
    8,632.79x = 104,447,246.64
  5. Step 5: Solve for x
    x = 104,447,246.64/8,632.79
  6. Step 6: Final answer
    x = 12,098.90

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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.