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Finding the Fourth Proportional to 8,735.61, 13,103.12 and 2,892.17

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Solution

The fourth proportional to 8,735.61, 13,103.12 and 2,892.17 is: 4,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.61 : 13,103.12 = 2,892.17 : x
  2. Step 2: Convert to fraction form
    8,735.61/13,103.12 = 2,892.17/x
  3. Step 3: Cross multiply
    8,735.61x = 13,103.12 × 2,892.17
  4. Step 4: Simplify right side
    8,735.61x = 37,896,474.29
  5. Step 5: Solve for x
    x = 37,896,474.29/8,735.61
  6. Step 6: Final answer
    x = 4,338.16

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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.