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Finding the Fourth Proportional to 68,856.99, 95,022.27 and 38,642.28

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Solution

The fourth proportional to 68,856.99, 95,022.27 and 38,642.28 is: 53,326.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.99 : 95,022.27 = 38,642.28 : x
  2. Step 2: Convert to fraction form
    68,856.99/95,022.27 = 38,642.28/x
  3. Step 3: Cross multiply
    68,856.99x = 95,022.27 × 38,642.28
  4. Step 4: Simplify right side
    68,856.99x = 3,671,877,163.58
  5. Step 5: Solve for x
    x = 3,671,877,163.58/68,856.99
  6. Step 6: Final answer
    x = 53,326.14

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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.