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Finding the Fourth Proportional to 68,513.78, 94,549.53 and 38,300.33

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Solution

The fourth proportional to 68,513.78, 94,549.53 and 38,300.33 is: 52,854.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,513.78 : 94,549.53 = 38,300.33 : x
  2. Step 2: Convert to fraction form
    68,513.78/94,549.53 = 38,300.33/x
  3. Step 3: Cross multiply
    68,513.78x = 94,549.53 × 38,300.33
  4. Step 4: Simplify right side
    68,513.78x = 3,621,277,727.60
  5. Step 5: Solve for x
    x = 3,621,277,727.60/68,513.78
  6. Step 6: Final answer
    x = 52,854.74

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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.