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Finding the Fourth Proportional to 57,570.60, 79,444.74 and 38,704.68

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Solution

The fourth proportional to 57,570.60, 79,444.74 and 38,704.68 is: 53,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,570.60 : 79,444.74 = 38,704.68 : x
  2. Step 2: Convert to fraction form
    57,570.60/79,444.74 = 38,704.68/x
  3. Step 3: Cross multiply
    57,570.60x = 79,444.74 × 38,704.68
  4. Step 4: Simplify right side
    57,570.60x = 3,074,883,239.38
  5. Step 5: Solve for x
    x = 3,074,883,239.38/57,570.60
  6. Step 6: Final answer
    x = 53,410.65

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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.