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Finding the Fourth Proportional to 7,176.65, 9,902.25 and 4,343.46

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Solution

The fourth proportional to 7,176.65, 9,902.25 and 4,343.46 is: 5,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.65 : 9,902.25 = 4,343.46 : x
  2. Step 2: Convert to fraction form
    7,176.65/9,902.25 = 4,343.46/x
  3. Step 3: Cross multiply
    7,176.65x = 9,902.25 × 4,343.46
  4. Step 4: Simplify right side
    7,176.65x = 43,010,026.79
  5. Step 5: Solve for x
    x = 43,010,026.79/7,176.65
  6. Step 6: Final answer
    x = 5,993.05

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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.