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Finding the Fourth Proportional to 7,440.70, 11,155.57 and 3,547.84

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Solution

The fourth proportional to 7,440.70, 11,155.57 and 3,547.84 is: 5,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.70 : 11,155.57 = 3,547.84 : x
  2. Step 2: Convert to fraction form
    7,440.70/11,155.57 = 3,547.84/x
  3. Step 3: Cross multiply
    7,440.70x = 11,155.57 × 3,547.84
  4. Step 4: Simplify right side
    7,440.70x = 39,578,177.47
  5. Step 5: Solve for x
    x = 39,578,177.47/7,440.70
  6. Step 6: Final answer
    x = 5,319.15

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