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Finding the Fourth Proportional to 68,412.68, 94,400.06 and 38,194.46

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Solution

The fourth proportional to 68,412.68, 94,400.06 and 38,194.46 is: 52,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.68 : 94,400.06 = 38,194.46 : x
  2. Step 2: Convert to fraction form
    68,412.68/94,400.06 = 38,194.46/x
  3. Step 3: Cross multiply
    68,412.68x = 94,400.06 × 38,194.46
  4. Step 4: Simplify right side
    68,412.68x = 3,605,559,315.67
  5. Step 5: Solve for x
    x = 3,605,559,315.67/68,412.68
  6. Step 6: Final answer
    x = 52,703.09

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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.