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Finding the Fourth Proportional to 68,561.61, 94,613.13 and 38,346.99

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Solution

The fourth proportional to 68,561.61, 94,613.13 and 38,346.99 is: 52,917.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,561.61 : 94,613.13 = 38,346.99 : x
  2. Step 2: Convert to fraction form
    68,561.61/94,613.13 = 38,346.99/x
  3. Step 3: Cross multiply
    68,561.61x = 94,613.13 × 38,346.99
  4. Step 4: Simplify right side
    68,561.61x = 3,628,128,749.98
  5. Step 5: Solve for x
    x = 3,628,128,749.98/68,561.61
  6. Step 6: Final answer
    x = 52,917.79

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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.