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Finding the Fourth Proportional to 57,798.44, 79,827.66 and 38,902.76

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Solution

The fourth proportional to 57,798.44, 79,827.66 and 38,902.76 is: 53,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.44 : 79,827.66 = 38,902.76 : x
  2. Step 2: Convert to fraction form
    57,798.44/79,827.66 = 38,902.76/x
  3. Step 3: Cross multiply
    57,798.44x = 79,827.66 × 38,902.76
  4. Step 4: Simplify right side
    57,798.44x = 3,105,516,298.34
  5. Step 5: Solve for x
    x = 3,105,516,298.34/57,798.44
  6. Step 6: Final answer
    x = 53,730.11

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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.