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Finding the Fourth Proportional to 57,398.80, 79,208.81 and 31,904.53

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Solution

The fourth proportional to 57,398.80, 79,208.81 and 31,904.53 is: 44,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,398.80 : 79,208.81 = 31,904.53 : x
  2. Step 2: Convert to fraction form
    57,398.80/79,208.81 = 31,904.53/x
  3. Step 3: Cross multiply
    57,398.80x = 79,208.81 × 31,904.53
  4. Step 4: Simplify right side
    57,398.80x = 2,527,120,152.29
  5. Step 5: Solve for x
    x = 2,527,120,152.29/57,398.80
  6. Step 6: Final answer
    x = 44,027.40

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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.