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Finding the Fourth Proportional to 7,458.79, 10,293.30 and 4,101.79

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Solution

The fourth proportional to 7,458.79, 10,293.30 and 4,101.79 is: 5,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.79 : 10,293.30 = 4,101.79 : x
  2. Step 2: Convert to fraction form
    7,458.79/10,293.30 = 4,101.79/x
  3. Step 3: Cross multiply
    7,458.79x = 10,293.30 × 4,101.79
  4. Step 4: Simplify right side
    7,458.79x = 42,220,883.03
  5. Step 5: Solve for x
    x = 42,220,883.03/7,458.79
  6. Step 6: Final answer
    x = 5,660.56

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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.