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Finding the Fourth Proportional to 12,475.35, 18,702.02 and 5,085.99

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Solution

The fourth proportional to 12,475.35, 18,702.02 and 5,085.99 is: 7,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.35 : 18,702.02 = 5,085.99 : x
  2. Step 2: Convert to fraction form
    12,475.35/18,702.02 = 5,085.99/x
  3. Step 3: Cross multiply
    12,475.35x = 18,702.02 × 5,085.99
  4. Step 4: Simplify right side
    12,475.35x = 95,118,286.70
  5. Step 5: Solve for x
    x = 95,118,286.70/12,475.35
  6. Step 6: Final answer
    x = 7,624.50

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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.