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Finding the Fourth Proportional to 5,079.60, 6,972.52 and 4,507.60

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Solution

The fourth proportional to 5,079.60, 6,972.52 and 4,507.60 is: 6,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.60 : 6,972.52 = 4,507.60 : x
  2. Step 2: Convert to fraction form
    5,079.60/6,972.52 = 4,507.60/x
  3. Step 3: Cross multiply
    5,079.60x = 6,972.52 × 4,507.60
  4. Step 4: Simplify right side
    5,079.60x = 31,429,331.15
  5. Step 5: Solve for x
    x = 31,429,331.15/5,079.60
  6. Step 6: Final answer
    x = 6,187.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.