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Finding the Fourth Proportional to 65,246.72, 90,041.66 and 36,958.28

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Solution

The fourth proportional to 65,246.72, 90,041.66 and 36,958.28 is: 51,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,246.72 : 90,041.66 = 36,958.28 : x
  2. Step 2: Convert to fraction form
    65,246.72/90,041.66 = 36,958.28/x
  3. Step 3: Cross multiply
    65,246.72x = 90,041.66 × 36,958.28
  4. Step 4: Simplify right side
    65,246.72x = 3,327,784,881.94
  5. Step 5: Solve for x
    x = 3,327,784,881.94/65,246.72
  6. Step 6: Final answer
    x = 51,003.10

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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.