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Finding the Fourth Proportional to 57,492.69, 79,339.73 and 31,998.93

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Solution

The fourth proportional to 57,492.69, 79,339.73 and 31,998.93 is: 44,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,492.69 : 79,339.73 = 31,998.93 : x
  2. Step 2: Convert to fraction form
    57,492.69/79,339.73 = 31,998.93/x
  3. Step 3: Cross multiply
    57,492.69x = 79,339.73 × 31,998.93
  4. Step 4: Simplify right side
    57,492.69x = 2,538,786,306.49
  5. Step 5: Solve for x
    x = 2,538,786,306.49/57,492.69
  6. Step 6: Final answer
    x = 44,158.42

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Double scale
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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.