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Finding the Fourth Proportional to 57,930.54, 79,902.86 and 53,165.92

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Solution

The fourth proportional to 57,930.54, 79,902.86 and 53,165.92 is: 73,331.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,930.54 : 79,902.86 = 53,165.92 : x
  2. Step 2: Convert to fraction form
    57,930.54/79,902.86 = 53,165.92/x
  3. Step 3: Cross multiply
    57,930.54x = 79,902.86 × 53,165.92
  4. Step 4: Simplify right side
    57,930.54x = 4,248,108,746.76
  5. Step 5: Solve for x
    x = 4,248,108,746.76/57,930.54
  6. Step 6: Final answer
    x = 73,331.07

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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.