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Finding the Fourth Proportional to 9,999.48, 14,995.92 and 3,425.52

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Solution

The fourth proportional to 9,999.48, 14,995.92 and 3,425.52 is: 5,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.48 : 14,995.92 = 3,425.52 : x
  2. Step 2: Convert to fraction form
    9,999.48/14,995.92 = 3,425.52/x
  3. Step 3: Cross multiply
    9,999.48x = 14,995.92 × 3,425.52
  4. Step 4: Simplify right side
    9,999.48x = 51,368,823.88
  5. Step 5: Solve for x
    x = 51,368,823.88/9,999.48
  6. Step 6: Final answer
    x = 5,137.15

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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.