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Finding the Fourth Proportional to 8,923.76, 13,387.91 and 7,344.96

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Solution

The fourth proportional to 8,923.76, 13,387.91 and 7,344.96 is: 11,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.76 : 13,387.91 = 7,344.96 : x
  2. Step 2: Convert to fraction form
    8,923.76/13,387.91 = 7,344.96/x
  3. Step 3: Cross multiply
    8,923.76x = 13,387.91 × 7,344.96
  4. Step 4: Simplify right side
    8,923.76x = 98,333,626.71
  5. Step 5: Solve for x
    x = 98,333,626.71/8,923.76
  6. Step 6: Final answer
    x = 11,019.31

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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.