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Finding the Fourth Proportional to 57,490.94, 79,332.80 and 31,995.38

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Solution

The fourth proportional to 57,490.94, 79,332.80 and 31,995.38 is: 44,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.94 : 79,332.80 = 31,995.38 : x
  2. Step 2: Convert to fraction form
    57,490.94/79,332.80 = 31,995.38/x
  3. Step 3: Cross multiply
    57,490.94x = 79,332.80 × 31,995.38
  4. Step 4: Simplify right side
    57,490.94x = 2,538,283,082.46
  5. Step 5: Solve for x
    x = 2,538,283,082.46/57,490.94
  6. Step 6: Final answer
    x = 44,151.01

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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.