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Finding the Fourth Proportional to 68,600.64, 94,655.04 and 38,786.88

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Solution

The fourth proportional to 68,600.64, 94,655.04 and 38,786.88 is: 53,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,600.64 : 94,655.04 = 38,786.88 : x
  2. Step 2: Convert to fraction form
    68,600.64/94,655.04 = 38,786.88/x
  3. Step 3: Cross multiply
    68,600.64x = 94,655.04 × 38,786.88
  4. Step 4: Simplify right side
    68,600.64x = 3,671,373,677.88
  5. Step 5: Solve for x
    x = 3,671,373,677.88/68,600.64
  6. Step 6: Final answer
    x = 53,518.07

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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.