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Finding the Fourth Proportional to 65,047.40, 89,764.96 and 36,753.04

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Solution

The fourth proportional to 65,047.40, 89,764.96 and 36,753.04 is: 50,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,047.40 : 89,764.96 = 36,753.04 : x
  2. Step 2: Convert to fraction form
    65,047.40/89,764.96 = 36,753.04/x
  3. Step 3: Cross multiply
    65,047.40x = 89,764.96 × 36,753.04
  4. Step 4: Simplify right side
    65,047.40x = 3,299,135,165.48
  5. Step 5: Solve for x
    x = 3,299,135,165.48/65,047.40
  6. Step 6: Final answer
    x = 50,718.94

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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.