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Finding the Fourth Proportional to 6,659.60, 9,184.16 and 4,564.40

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Solution

The fourth proportional to 6,659.60, 9,184.16 and 4,564.40 is: 6,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.60 : 9,184.16 = 4,564.40 : x
  2. Step 2: Convert to fraction form
    6,659.60/9,184.16 = 4,564.40/x
  3. Step 3: Cross multiply
    6,659.60x = 9,184.16 × 4,564.40
  4. Step 4: Simplify right side
    6,659.60x = 41,920,179.90
  5. Step 5: Solve for x
    x = 41,920,179.90/6,659.60
  6. Step 6: Final answer
    x = 6,294.70

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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.