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Finding the Fourth Proportional to 3,615.93, 4,990.56 and 3,026.25

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Solution

The fourth proportional to 3,615.93, 4,990.56 and 3,026.25 is: 4,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.93 : 4,990.56 = 3,026.25 : x
  2. Step 2: Convert to fraction form
    3,615.93/4,990.56 = 3,026.25/x
  3. Step 3: Cross multiply
    3,615.93x = 4,990.56 × 3,026.25
  4. Step 4: Simplify right side
    3,615.93x = 15,102,682.20
  5. Step 5: Solve for x
    x = 15,102,682.20/3,615.93
  6. Step 6: Final answer
    x = 4,176.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.