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Finding the Fourth Proportional to 68,632.71, 94,705.16 and 38,419.71

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Solution

The fourth proportional to 68,632.71, 94,705.16 and 38,419.71 is: 53,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,632.71 : 94,705.16 = 38,419.71 : x
  2. Step 2: Convert to fraction form
    68,632.71/94,705.16 = 38,419.71/x
  3. Step 3: Cross multiply
    68,632.71x = 94,705.16 × 38,419.71
  4. Step 4: Simplify right side
    68,632.71x = 3,638,544,782.70
  5. Step 5: Solve for x
    x = 3,638,544,782.70/68,632.71
  6. Step 6: Final answer
    x = 53,014.73

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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.