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Finding the Fourth Proportional to 3,440.74, 5,161.10 and 975.56

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Solution

The fourth proportional to 3,440.74, 5,161.10 and 975.56 is: 1,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.74 : 5,161.10 = 975.56 : x
  2. Step 2: Convert to fraction form
    3,440.74/5,161.10 = 975.56/x
  3. Step 3: Cross multiply
    3,440.74x = 5,161.10 × 975.56
  4. Step 4: Simplify right side
    3,440.74x = 5,034,966.55
  5. Step 5: Solve for x
    x = 5,034,966.55/3,440.74
  6. Step 6: Final answer
    x = 1,463.34

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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.