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Finding the Fourth Proportional to 7,221.01, 9,962.04 and 4,863.91

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Solution

The fourth proportional to 7,221.01, 9,962.04 and 4,863.91 is: 6,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.01 : 9,962.04 = 4,863.91 : x
  2. Step 2: Convert to fraction form
    7,221.01/9,962.04 = 4,863.91/x
  3. Step 3: Cross multiply
    7,221.01x = 9,962.04 × 4,863.91
  4. Step 4: Simplify right side
    7,221.01x = 48,454,465.98
  5. Step 5: Solve for x
    x = 48,454,465.98/7,221.01
  6. Step 6: Final answer
    x = 6,710.21

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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.