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Finding the Fourth Proportional to 57,398.55, 79,209.93 and 31,904.11

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Solution

The fourth proportional to 57,398.55, 79,209.93 and 31,904.11 is: 44,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,398.55 : 79,209.93 = 31,904.11 : x
  2. Step 2: Convert to fraction form
    57,398.55/79,209.93 = 31,904.11/x
  3. Step 3: Cross multiply
    57,398.55x = 79,209.93 × 31,904.11
  4. Step 4: Simplify right side
    57,398.55x = 2,527,122,319.81
  5. Step 5: Solve for x
    x = 2,527,122,319.81/57,398.55
  6. Step 6: Final answer
    x = 44,027.63

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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.