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Finding the Fourth Proportional to 3,237.75, 4,856.64 and 929.25

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Solution

The fourth proportional to 3,237.75, 4,856.64 and 929.25 is: 1,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.75 : 4,856.64 = 929.25 : x
  2. Step 2: Convert to fraction form
    3,237.75/4,856.64 = 929.25/x
  3. Step 3: Cross multiply
    3,237.75x = 4,856.64 × 929.25
  4. Step 4: Simplify right side
    3,237.75x = 4,513,032.72
  5. Step 5: Solve for x
    x = 4,513,032.72/3,237.75
  6. Step 6: Final answer
    x = 1,393.88

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.