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Finding the Fourth Proportional to 61,647.55, 92,471.34 and 17,280.88

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Solution

The fourth proportional to 61,647.55, 92,471.34 and 17,280.88 is: 25,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,647.55 : 92,471.34 = 17,280.88 : x
  2. Step 2: Convert to fraction form
    61,647.55/92,471.34 = 17,280.88/x
  3. Step 3: Cross multiply
    61,647.55x = 92,471.34 × 17,280.88
  4. Step 4: Simplify right side
    61,647.55x = 1,597,986,129.98
  5. Step 5: Solve for x
    x = 1,597,986,129.98/61,647.55
  6. Step 6: Final answer
    x = 25,921.32

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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.