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Finding the Fourth Proportional to 7,221.96, 9,968.16 and 4,570.83

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Solution

The fourth proportional to 7,221.96, 9,968.16 and 4,570.83 is: 6,308.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.96 : 9,968.16 = 4,570.83 : x
  2. Step 2: Convert to fraction form
    7,221.96/9,968.16 = 4,570.83/x
  3. Step 3: Cross multiply
    7,221.96x = 9,968.16 × 4,570.83
  4. Step 4: Simplify right side
    7,221.96x = 45,562,781.91
  5. Step 5: Solve for x
    x = 45,562,781.91/7,221.96
  6. Step 6: Final answer
    x = 6,308.92

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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.