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Finding the Fourth Proportional to 5,472.92, 7,555.74 and 3,615.32

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Solution

The fourth proportional to 5,472.92, 7,555.74 and 3,615.32 is: 4,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.92 : 7,555.74 = 3,615.32 : x
  2. Step 2: Convert to fraction form
    5,472.92/7,555.74 = 3,615.32/x
  3. Step 3: Cross multiply
    5,472.92x = 7,555.74 × 3,615.32
  4. Step 4: Simplify right side
    5,472.92x = 27,316,417.94
  5. Step 5: Solve for x
    x = 27,316,417.94/5,472.92
  6. Step 6: Final answer
    x = 4,991.20

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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.