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Finding the Fourth Proportional to 68,409.72, 94,414.86 and 38,197.00

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Solution

The fourth proportional to 68,409.72, 94,414.86 and 38,197.00 is: 52,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,409.72 : 94,414.86 = 38,197.00 : x
  2. Step 2: Convert to fraction form
    68,409.72/94,414.86 = 38,197.00/x
  3. Step 3: Cross multiply
    68,409.72x = 94,414.86 × 38,197.00
  4. Step 4: Simplify right side
    68,409.72x = 3,606,364,152.47
  5. Step 5: Solve for x
    x = 3,606,364,152.47/68,409.72
  6. Step 6: Final answer
    x = 52,717.13

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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.