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Finding the Fourth Proportional to 6,741.62, 9,304.57 and 4,978.32

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Solution

The fourth proportional to 6,741.62, 9,304.57 and 4,978.32 is: 6,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,741.62 : 9,304.57 = 4,978.32 : x
  2. Step 2: Convert to fraction form
    6,741.62/9,304.57 = 4,978.32/x
  3. Step 3: Cross multiply
    6,741.62x = 9,304.57 × 4,978.32
  4. Step 4: Simplify right side
    6,741.62x = 46,321,126.92
  5. Step 5: Solve for x
    x = 46,321,126.92/6,741.62
  6. Step 6: Final answer
    x = 6,870.92

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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.