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Finding the Fourth Proportional to 70,915.50, 106,391.48 and 26,542.89

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Solution

The fourth proportional to 70,915.50, 106,391.48 and 26,542.89 is: 39,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915.50 : 106,391.48 = 26,542.89 : x
  2. Step 2: Convert to fraction form
    70,915.50/106,391.48 = 26,542.89/x
  3. Step 3: Cross multiply
    70,915.50x = 106,391.48 × 26,542.89
  4. Step 4: Simplify right side
    70,915.50x = 2,823,937,217.86
  5. Step 5: Solve for x
    x = 2,823,937,217.86/70,915.50
  6. Step 6: Final answer
    x = 39,821.16

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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.