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Finding the Fourth Proportional to 61,000.40, 91,654.20 and 38,824.40

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Solution

The fourth proportional to 61,000.40, 91,654.20 and 38,824.40 is: 58,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,000.40 : 91,654.20 = 38,824.40 : x
  2. Step 2: Convert to fraction form
    61,000.40/91,654.20 = 38,824.40/x
  3. Step 3: Cross multiply
    61,000.40x = 91,654.20 × 38,824.40
  4. Step 4: Simplify right side
    61,000.40x = 3,558,419,322.48
  5. Step 5: Solve for x
    x = 3,558,419,322.48/61,000.40
  6. Step 6: Final answer
    x = 58,334.36

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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.