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Finding the Fourth Proportional to 77,885.80, 116,832.84 and 25,291.42

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Solution

The fourth proportional to 77,885.80, 116,832.84 and 25,291.42 is: 37,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,885.80 : 116,832.84 = 25,291.42 : x
  2. Step 2: Convert to fraction form
    77,885.80/116,832.84 = 25,291.42/x
  3. Step 3: Cross multiply
    77,885.80x = 116,832.84 × 25,291.42
  4. Step 4: Simplify right side
    77,885.80x = 2,954,868,426.23
  5. Step 5: Solve for x
    x = 2,954,868,426.23/77,885.80
  6. Step 6: Final answer
    x = 37,938.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.