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Finding the Fourth Proportional to 70,085.94, 96,717.08 and 38,255.38

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Solution

The fourth proportional to 70,085.94, 96,717.08 and 38,255.38 is: 52,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,085.94 : 96,717.08 = 38,255.38 : x
  2. Step 2: Convert to fraction form
    70,085.94/96,717.08 = 38,255.38/x
  3. Step 3: Cross multiply
    70,085.94x = 96,717.08 × 38,255.38
  4. Step 4: Simplify right side
    70,085.94x = 3,699,948,647.89
  5. Step 5: Solve for x
    x = 3,699,948,647.89/70,085.94
  6. Step 6: Final answer
    x = 52,791.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.