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Finding the Fourth Proportional to 8,635.95, 12,951.50 and 2,394.45

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Solution

The fourth proportional to 8,635.95, 12,951.50 and 2,394.45 is: 3,591.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.95 : 12,951.50 = 2,394.45 : x
  2. Step 2: Convert to fraction form
    8,635.95/12,951.50 = 2,394.45/x
  3. Step 3: Cross multiply
    8,635.95x = 12,951.50 × 2,394.45
  4. Step 4: Simplify right side
    8,635.95x = 31,011,707.20
  5. Step 5: Solve for x
    x = 31,011,707.20/8,635.95
  6. Step 6: Final answer
    x = 3,591.00

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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.