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Finding the Fourth Proportional to 7,448.69, 11,160.74 and 5,252.81

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Solution

The fourth proportional to 7,448.69, 11,160.74 and 5,252.81 is: 7,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.69 : 11,160.74 = 5,252.81 : x
  2. Step 2: Convert to fraction form
    7,448.69/11,160.74 = 5,252.81/x
  3. Step 3: Cross multiply
    7,448.69x = 11,160.74 × 5,252.81
  4. Step 4: Simplify right side
    7,448.69x = 58,625,164.61
  5. Step 5: Solve for x
    x = 58,625,164.61/7,448.69
  6. Step 6: Final answer
    x = 7,870.54

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1.5x scale

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.