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Finding the Fourth Proportional to 65,611.52, 90,551.16 and 36,932.06

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Solution

The fourth proportional to 65,611.52, 90,551.16 and 36,932.06 is: 50,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,611.52 : 90,551.16 = 36,932.06 : x
  2. Step 2: Convert to fraction form
    65,611.52/90,551.16 = 36,932.06/x
  3. Step 3: Cross multiply
    65,611.52x = 90,551.16 × 36,932.06
  4. Step 4: Simplify right side
    65,611.52x = 3,344,240,421.43
  5. Step 5: Solve for x
    x = 3,344,240,421.43/65,611.52
  6. Step 6: Final answer
    x = 50,970.33

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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.