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Finding the Fourth Proportional to 2,293.75, 3,157.19 and 2,053.79

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Solution

The fourth proportional to 2,293.75, 3,157.19 and 2,053.79 is: 2,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.75 : 3,157.19 = 2,053.79 : x
  2. Step 2: Convert to fraction form
    2,293.75/3,157.19 = 2,053.79/x
  3. Step 3: Cross multiply
    2,293.75x = 3,157.19 × 2,053.79
  4. Step 4: Simplify right side
    2,293.75x = 6,484,205.25
  5. Step 5: Solve for x
    x = 6,484,205.25/2,293.75
  6. Step 6: Final answer
    x = 2,826.90

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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.