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Finding the Fourth Proportional to 7,244.33, 9,990.95 and 5,749.88

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Solution

The fourth proportional to 7,244.33, 9,990.95 and 5,749.88 is: 7,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244.33 : 9,990.95 = 5,749.88 : x
  2. Step 2: Convert to fraction form
    7,244.33/9,990.95 = 5,749.88/x
  3. Step 3: Cross multiply
    7,244.33x = 9,990.95 × 5,749.88
  4. Step 4: Simplify right side
    7,244.33x = 57,446,684.88
  5. Step 5: Solve for x
    x = 57,446,684.88/7,244.33
  6. Step 6: Final answer
    x = 7,929.89

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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.