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Finding the Fourth Proportional to 65,356.11, 90,193.22 and 36,677.53

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Solution

The fourth proportional to 65,356.11, 90,193.22 and 36,677.53 is: 50,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,356.11 : 90,193.22 = 36,677.53 : x
  2. Step 2: Convert to fraction form
    65,356.11/90,193.22 = 36,677.53/x
  3. Step 3: Cross multiply
    65,356.11x = 90,193.22 × 36,677.53
  4. Step 4: Simplify right side
    65,356.11x = 3,308,064,246.64
  5. Step 5: Solve for x
    x = 3,308,064,246.64/65,356.11
  6. Step 6: Final answer
    x = 50,615.99

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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.