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Finding the Fourth Proportional to 7,207.16, 9,945.72 and 4,337.64

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Solution

The fourth proportional to 7,207.16, 9,945.72 and 4,337.64 is: 5,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.16 : 9,945.72 = 4,337.64 : x
  2. Step 2: Convert to fraction form
    7,207.16/9,945.72 = 4,337.64/x
  3. Step 3: Cross multiply
    7,207.16x = 9,945.72 × 4,337.64
  4. Step 4: Simplify right side
    7,207.16x = 43,140,952.90
  5. Step 5: Solve for x
    x = 43,140,952.90/7,207.16
  6. Step 6: Final answer
    x = 5,985.85

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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.