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Finding the Fourth Proportional to 68,280.64, 94,219.68 and 38,063.68

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Solution

The fourth proportional to 68,280.64, 94,219.68 and 38,063.68 is: 52,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,280.64 : 94,219.68 = 38,063.68 : x
  2. Step 2: Convert to fraction form
    68,280.64/94,219.68 = 38,063.68/x
  3. Step 3: Cross multiply
    68,280.64x = 94,219.68 × 38,063.68
  4. Step 4: Simplify right side
    68,280.64x = 3,586,347,749.22
  5. Step 5: Solve for x
    x = 3,586,347,749.22/68,280.64
  6. Step 6: Final answer
    x = 52,523.64

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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.