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Finding the Fourth Proportional to 68,707.36, 94,823.80 and 38,497.60

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Solution

The fourth proportional to 68,707.36, 94,823.80 and 38,497.60 is: 53,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,707.36 : 94,823.80 = 38,497.60 : x
  2. Step 2: Convert to fraction form
    68,707.36/94,823.80 = 38,497.60/x
  3. Step 3: Cross multiply
    68,707.36x = 94,823.80 × 38,497.60
  4. Step 4: Simplify right side
    68,707.36x = 3,650,488,722.88
  5. Step 5: Solve for x
    x = 3,650,488,722.88/68,707.36
  6. Step 6: Final answer
    x = 53,130.97

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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.