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Finding the Fourth Proportional to 8,732.90, 13,100.12 and 2,492.79

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Solution

The fourth proportional to 8,732.90, 13,100.12 and 2,492.79 is: 3,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.90 : 13,100.12 = 2,492.79 : x
  2. Step 2: Convert to fraction form
    8,732.90/13,100.12 = 2,492.79/x
  3. Step 3: Cross multiply
    8,732.90x = 13,100.12 × 2,492.79
  4. Step 4: Simplify right side
    8,732.90x = 32,655,848.13
  5. Step 5: Solve for x
    x = 32,655,848.13/8,732.90
  6. Step 6: Final answer
    x = 3,739.41

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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.