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Finding the Fourth Proportional to 4,507.95, 6,765.12 and 2,947.89

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Solution

The fourth proportional to 4,507.95, 6,765.12 and 2,947.89 is: 4,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,507.95 : 6,765.12 = 2,947.89 : x
  2. Step 2: Convert to fraction form
    4,507.95/6,765.12 = 2,947.89/x
  3. Step 3: Cross multiply
    4,507.95x = 6,765.12 × 2,947.89
  4. Step 4: Simplify right side
    4,507.95x = 19,942,854.97
  5. Step 5: Solve for x
    x = 19,942,854.97/4,507.95
  6. Step 6: Final answer
    x = 4,423.93

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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.