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Finding the Fourth Proportional to 75,915.80, 113,873.70 and 23,318.45

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Solution

The fourth proportional to 75,915.80, 113,873.70 and 23,318.45 is: 34,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,915.80 : 113,873.70 = 23,318.45 : x
  2. Step 2: Convert to fraction form
    75,915.80/113,873.70 = 23,318.45/x
  3. Step 3: Cross multiply
    75,915.80x = 113,873.70 × 23,318.45
  4. Step 4: Simplify right side
    75,915.80x = 2,655,358,179.77
  5. Step 5: Solve for x
    x = 2,655,358,179.77/75,915.80
  6. Step 6: Final answer
    x = 34,977.68

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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.