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Finding the Fourth Proportional to 15,841.70, 23,747.70 and 5,987.60

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Solution

The fourth proportional to 15,841.70, 23,747.70 and 5,987.60 is: 8,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.70 : 23,747.70 = 5,987.60 : x
  2. Step 2: Convert to fraction form
    15,841.70/23,747.70 = 5,987.60/x
  3. Step 3: Cross multiply
    15,841.70x = 23,747.70 × 5,987.60
  4. Step 4: Simplify right side
    15,841.70x = 142,191,728.52
  5. Step 5: Solve for x
    x = 142,191,728.52/15,841.70
  6. Step 6: Final answer
    x = 8,975.79

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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.