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Finding the Fourth Proportional to 7,041.32, 9,718.08 and 5,360

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Solution

The fourth proportional to 7,041.32, 9,718.08 and 5,360 is: 7,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.32 : 9,718.08 = 5,360 : x
  2. Step 2: Convert to fraction form
    7,041.32/9,718.08 = 5,360/x
  3. Step 3: Cross multiply
    7,041.32x = 9,718.08 × 5,360
  4. Step 4: Simplify right side
    7,041.32x = 52,088,908.80
  5. Step 5: Solve for x
    x = 52,088,908.80/7,041.32
  6. Step 6: Final answer
    x = 7,397.61

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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.