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Finding the Fourth Proportional to 5,468.80, 7,538.72 and 4,719.36

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Solution

The fourth proportional to 5,468.80, 7,538.72 and 4,719.36 is: 6,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,468.80 : 7,538.72 = 4,719.36 : x
  2. Step 2: Convert to fraction form
    5,468.80/7,538.72 = 4,719.36/x
  3. Step 3: Cross multiply
    5,468.80x = 7,538.72 × 4,719.36
  4. Step 4: Simplify right side
    5,468.80x = 35,577,933.62
  5. Step 5: Solve for x
    x = 35,577,933.62/5,468.80
  6. Step 6: Final answer
    x = 6,505.62

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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.