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Finding the Fourth Proportional to 11,340.79, 15,648.00 and 6,624.16

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Solution

The fourth proportional to 11,340.79, 15,648.00 and 6,624.16 is: 9,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.79 : 15,648.00 = 6,624.16 : x
  2. Step 2: Convert to fraction form
    11,340.79/15,648.00 = 6,624.16/x
  3. Step 3: Cross multiply
    11,340.79x = 15,648.00 × 6,624.16
  4. Step 4: Simplify right side
    11,340.79x = 103,654,917.00
  5. Step 5: Solve for x
    x = 103,654,917.00/11,340.79
  6. Step 6: Final answer
    x = 9,140.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.