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Finding the Fourth Proportional to 8,672.10, 13,008.15 and 6,047.70

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Solution

The fourth proportional to 8,672.10, 13,008.15 and 6,047.70 is: 9,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.10 : 13,008.15 = 6,047.70 : x
  2. Step 2: Convert to fraction form
    8,672.10/13,008.15 = 6,047.70/x
  3. Step 3: Cross multiply
    8,672.10x = 13,008.15 × 6,047.70
  4. Step 4: Simplify right side
    8,672.10x = 78,669,388.76
  5. Step 5: Solve for x
    x = 78,669,388.76/8,672.10
  6. Step 6: Final answer
    x = 9,071.55

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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.