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Finding the Fourth Proportional to 19,157.71, 28,737.65 and 5,831.14

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Solution

The fourth proportional to 19,157.71, 28,737.65 and 5,831.14 is: 8,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.71 : 28,737.65 = 5,831.14 : x
  2. Step 2: Convert to fraction form
    19,157.71/28,737.65 = 5,831.14/x
  3. Step 3: Cross multiply
    19,157.71x = 28,737.65 × 5,831.14
  4. Step 4: Simplify right side
    19,157.71x = 167,573,260.42
  5. Step 5: Solve for x
    x = 167,573,260.42/19,157.71
  6. Step 6: Final answer
    x = 8,747.04

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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.