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Finding the Fourth Proportional to 3,453.92, 4,752.96 and 3,061.76

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Solution

The fourth proportional to 3,453.92, 4,752.96 and 3,061.76 is: 4,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.92 : 4,752.96 = 3,061.76 : x
  2. Step 2: Convert to fraction form
    3,453.92/4,752.96 = 3,061.76/x
  3. Step 3: Cross multiply
    3,453.92x = 4,752.96 × 3,061.76
  4. Step 4: Simplify right side
    3,453.92x = 14,552,422.81
  5. Step 5: Solve for x
    x = 14,552,422.81/3,453.92
  6. Step 6: Final answer
    x = 4,213.31

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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.