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Finding the Fourth Proportional to 3,573.92, 5,381.84 and 3,117.16

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Solution

The fourth proportional to 3,573.92, 5,381.84 and 3,117.16 is: 4,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.92 : 5,381.84 = 3,117.16 : x
  2. Step 2: Convert to fraction form
    3,573.92/5,381.84 = 3,117.16/x
  3. Step 3: Cross multiply
    3,573.92x = 5,381.84 × 3,117.16
  4. Step 4: Simplify right side
    3,573.92x = 16,776,055.76
  5. Step 5: Solve for x
    x = 16,776,055.76/3,573.92
  6. Step 6: Final answer
    x = 4,694.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.