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Finding the Fourth Proportional to 6,707.57, 9,258.57 and 3,913.61

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Solution

The fourth proportional to 6,707.57, 9,258.57 and 3,913.61 is: 5,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,707.57 : 9,258.57 = 3,913.61 : x
  2. Step 2: Convert to fraction form
    6,707.57/9,258.57 = 3,913.61/x
  3. Step 3: Cross multiply
    6,707.57x = 9,258.57 × 3,913.61
  4. Step 4: Simplify right side
    6,707.57x = 36,234,385.84
  5. Step 5: Solve for x
    x = 36,234,385.84/6,707.57
  6. Step 6: Final answer
    x = 5,402.02

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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.