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Finding the Fourth Proportional to 3,055.92, 4,583.80 and 747.40

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Solution

The fourth proportional to 3,055.92, 4,583.80 and 747.40 is: 1,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.92 : 4,583.80 = 747.40 : x
  2. Step 2: Convert to fraction form
    3,055.92/4,583.80 = 747.40/x
  3. Step 3: Cross multiply
    3,055.92x = 4,583.80 × 747.40
  4. Step 4: Simplify right side
    3,055.92x = 3,425,932.12
  5. Step 5: Solve for x
    x = 3,425,932.12/3,055.92
  6. Step 6: Final answer
    x = 1,121.08

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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.