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Finding the Fourth Proportional to 77,391.84, 116,074.80 and 35,258.88

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Solution

The fourth proportional to 77,391.84, 116,074.80 and 35,258.88 is: 52,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391.84 : 116,074.80 = 35,258.88 : x
  2. Step 2: Convert to fraction form
    77,391.84/116,074.80 = 35,258.88/x
  3. Step 3: Cross multiply
    77,391.84x = 116,074.80 × 35,258.88
  4. Step 4: Simplify right side
    77,391.84x = 4,092,667,444.22
  5. Step 5: Solve for x
    x = 4,092,667,444.22/77,391.84
  6. Step 6: Final answer
    x = 52,882.42

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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.