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Finding the Fourth Proportional to 15,881.80, 23,814.18 and 5,348.32

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Solution

The fourth proportional to 15,881.80, 23,814.18 and 5,348.32 is: 8,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.80 : 23,814.18 = 5,348.32 : x
  2. Step 2: Convert to fraction form
    15,881.80/23,814.18 = 5,348.32/x
  3. Step 3: Cross multiply
    15,881.80x = 23,814.18 × 5,348.32
  4. Step 4: Simplify right side
    15,881.80x = 127,365,855.18
  5. Step 5: Solve for x
    x = 127,365,855.18/15,881.80
  6. Step 6: Final answer
    x = 8,019.61

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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.