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Finding the Fourth Proportional to 57,904.40, 79,944 and 44,449.92

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Solution

The fourth proportional to 57,904.40, 79,944 and 44,449.92 is: 61,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,904.40 : 79,944 = 44,449.92 : x
  2. Step 2: Convert to fraction form
    57,904.40/79,944 = 44,449.92/x
  3. Step 3: Cross multiply
    57,904.40x = 79,944 × 44,449.92
  4. Step 4: Simplify right side
    57,904.40x = 3,553,504,404.48
  5. Step 5: Solve for x
    x = 3,553,504,404.48/57,904.40
  6. Step 6: Final answer
    x = 61,368.47

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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.