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Finding the Fourth Proportional to 6,898.55, 9,508.91 and 4,659.71

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Solution

The fourth proportional to 6,898.55, 9,508.91 and 4,659.71 is: 6,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.55 : 9,508.91 = 4,659.71 : x
  2. Step 2: Convert to fraction form
    6,898.55/9,508.91 = 4,659.71/x
  3. Step 3: Cross multiply
    6,898.55x = 9,508.91 × 4,659.71
  4. Step 4: Simplify right side
    6,898.55x = 44,308,692.17
  5. Step 5: Solve for x
    x = 44,308,692.17/6,898.55
  6. Step 6: Final answer
    x = 6,422.90

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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.