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Finding the Fourth Proportional to 9,240.95, 12,753.95 and 5,885.21

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Solution

The fourth proportional to 9,240.95, 12,753.95 and 5,885.21 is: 8,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.95 : 12,753.95 = 5,885.21 : x
  2. Step 2: Convert to fraction form
    9,240.95/12,753.95 = 5,885.21/x
  3. Step 3: Cross multiply
    9,240.95x = 12,753.95 × 5,885.21
  4. Step 4: Simplify right side
    9,240.95x = 75,059,580.88
  5. Step 5: Solve for x
    x = 75,059,580.88/9,240.95
  6. Step 6: Final answer
    x = 8,122.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.