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Finding the Fourth Proportional to 5,432.76, 7,493.36 and 4,986.09

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Solution

The fourth proportional to 5,432.76, 7,493.36 and 4,986.09 is: 6,877.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.76 : 7,493.36 = 4,986.09 : x
  2. Step 2: Convert to fraction form
    5,432.76/7,493.36 = 4,986.09/x
  3. Step 3: Cross multiply
    5,432.76x = 7,493.36 × 4,986.09
  4. Step 4: Simplify right side
    5,432.76x = 37,362,542.43
  5. Step 5: Solve for x
    x = 37,362,542.43/5,432.76
  6. Step 6: Final answer
    x = 6,877.27

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Half scale
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Double scale
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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.