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Finding the Fourth Proportional to 45,856.48, 68,784.72 and 36,680.80

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Solution

The fourth proportional to 45,856.48, 68,784.72 and 36,680.80 is: 55,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,856.48 : 68,784.72 = 36,680.80 : x
  2. Step 2: Convert to fraction form
    45,856.48/68,784.72 = 36,680.80/x
  3. Step 3: Cross multiply
    45,856.48x = 68,784.72 × 36,680.80
  4. Step 4: Simplify right side
    45,856.48x = 2,523,078,557.38
  5. Step 5: Solve for x
    x = 2,523,078,557.38/45,856.48
  6. Step 6: Final answer
    x = 55,021.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.