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Finding the Fourth Proportional to 65,611.96, 90,547.37 and 36,933.47

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Solution

The fourth proportional to 65,611.96, 90,547.37 and 36,933.47 is: 50,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,611.96 : 90,547.37 = 36,933.47 : x
  2. Step 2: Convert to fraction form
    65,611.96/90,547.37 = 36,933.47/x
  3. Step 3: Cross multiply
    65,611.96x = 90,547.37 × 36,933.47
  4. Step 4: Simplify right side
    65,611.96x = 3,344,228,414.12
  5. Step 5: Solve for x
    x = 3,344,228,414.12/65,611.96
  6. Step 6: Final answer
    x = 50,969.80

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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.