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Finding the Fourth Proportional to 6,410.10, 9,615.15 and 6,021.30

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Solution

The fourth proportional to 6,410.10, 9,615.15 and 6,021.30 is: 9,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,410.10 : 9,615.15 = 6,021.30 : x
  2. Step 2: Convert to fraction form
    6,410.10/9,615.15 = 6,021.30/x
  3. Step 3: Cross multiply
    6,410.10x = 9,615.15 × 6,021.30
  4. Step 4: Simplify right side
    6,410.10x = 57,895,702.70
  5. Step 5: Solve for x
    x = 57,895,702.70/6,410.10
  6. Step 6: Final answer
    x = 9,031.95

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Double scale
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Similar ratio
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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.