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Finding the Fourth Proportional to 68,409.29, 94,406.71 and 38,193.45

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Solution

The fourth proportional to 68,409.29, 94,406.71 and 38,193.45 is: 52,708.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,409.29 : 94,406.71 = 38,193.45 : x
  2. Step 2: Convert to fraction form
    68,409.29/94,406.71 = 38,193.45/x
  3. Step 3: Cross multiply
    68,409.29x = 94,406.71 × 38,193.45
  4. Step 4: Simplify right side
    68,409.29x = 3,605,717,767.08
  5. Step 5: Solve for x
    x = 3,605,717,767.08/68,409.29
  6. Step 6: Final answer
    x = 52,708.01

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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.