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Finding the Fourth Proportional to 68,085.76, 93,958.34 and 38,277.76

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Solution

The fourth proportional to 68,085.76, 93,958.34 and 38,277.76 is: 52,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,085.76 : 93,958.34 = 38,277.76 : x
  2. Step 2: Convert to fraction form
    68,085.76/93,958.34 = 38,277.76/x
  3. Step 3: Cross multiply
    68,085.76x = 93,958.34 × 38,277.76
  4. Step 4: Simplify right side
    68,085.76x = 3,596,514,788.52
  5. Step 5: Solve for x
    x = 3,596,514,788.52/68,085.76
  6. Step 6: Final answer
    x = 52,823.30

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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.