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Finding the Fourth Proportional to 7,499, 11,248.68 and 2,305.28

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Solution

The fourth proportional to 7,499, 11,248.68 and 2,305.28 is: 3,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499 : 11,248.68 = 2,305.28 : x
  2. Step 2: Convert to fraction form
    7,499/11,248.68 = 2,305.28/x
  3. Step 3: Cross multiply
    7,499x = 11,248.68 × 2,305.28
  4. Step 4: Simplify right side
    7,499x = 25,931,357.03
  5. Step 5: Solve for x
    x = 25,931,357.03/7,499
  6. Step 6: Final answer
    x = 3,457.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.