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Finding the Fourth Proportional to 5,923.76, 8,889.18 and 5,318.66

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Solution

The fourth proportional to 5,923.76, 8,889.18 and 5,318.66 is: 7,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,923.76 : 8,889.18 = 5,318.66 : x
  2. Step 2: Convert to fraction form
    5,923.76/8,889.18 = 5,318.66/x
  3. Step 3: Cross multiply
    5,923.76x = 8,889.18 × 5,318.66
  4. Step 4: Simplify right side
    5,923.76x = 47,278,526.10
  5. Step 5: Solve for x
    x = 47,278,526.10/5,923.76
  6. Step 6: Final answer
    x = 7,981.17

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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.