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Finding the Fourth Proportional to 5,343.38, 7,362.78 and 4,543.91

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Solution

The fourth proportional to 5,343.38, 7,362.78 and 4,543.91 is: 6,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.38 : 7,362.78 = 4,543.91 : x
  2. Step 2: Convert to fraction form
    5,343.38/7,362.78 = 4,543.91/x
  3. Step 3: Cross multiply
    5,343.38x = 7,362.78 × 4,543.91
  4. Step 4: Simplify right side
    5,343.38x = 33,455,783.43
  5. Step 5: Solve for x
    x = 33,455,783.43/5,343.38
  6. Step 6: Final answer
    x = 6,261.17

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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.