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Finding the Fourth Proportional to 57,296.88, 79,043.04 and 38,186.28

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Solution

The fourth proportional to 57,296.88, 79,043.04 and 38,186.28 is: 52,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,296.88 : 79,043.04 = 38,186.28 : x
  2. Step 2: Convert to fraction form
    57,296.88/79,043.04 = 38,186.28/x
  3. Step 3: Cross multiply
    57,296.88x = 79,043.04 × 38,186.28
  4. Step 4: Simplify right side
    57,296.88x = 3,018,359,657.49
  5. Step 5: Solve for x
    x = 3,018,359,657.49/57,296.88
  6. Step 6: Final answer
    x = 52,679.30

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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.