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Finding the Fourth Proportional to 14,155.65, 21,236.03 and 5,831.12

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Solution

The fourth proportional to 14,155.65, 21,236.03 and 5,831.12 is: 8,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.65 : 21,236.03 = 5,831.12 : x
  2. Step 2: Convert to fraction form
    14,155.65/21,236.03 = 5,831.12/x
  3. Step 3: Cross multiply
    14,155.65x = 21,236.03 × 5,831.12
  4. Step 4: Simplify right side
    14,155.65x = 123,829,703.92
  5. Step 5: Solve for x
    x = 123,829,703.92/14,155.65
  6. Step 6: Final answer
    x = 8,747.72

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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.