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Finding the Fourth Proportional to 9,987.92, 14,980.92 and 3,062.48

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Solution

The fourth proportional to 9,987.92, 14,980.92 and 3,062.48 is: 4,593.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.92 : 14,980.92 = 3,062.48 : x
  2. Step 2: Convert to fraction form
    9,987.92/14,980.92 = 3,062.48/x
  3. Step 3: Cross multiply
    9,987.92x = 14,980.92 × 3,062.48
  4. Step 4: Simplify right side
    9,987.92x = 45,878,767.88
  5. Step 5: Solve for x
    x = 45,878,767.88/9,987.92
  6. Step 6: Final answer
    x = 4,593.43

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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.