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Finding the Fourth Proportional to 65,045.22, 89,764.14 and 36,750.30

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Solution

The fourth proportional to 65,045.22, 89,764.14 and 36,750.30 is: 50,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.22 : 89,764.14 = 36,750.30 : x
  2. Step 2: Convert to fraction form
    65,045.22/89,764.14 = 36,750.30/x
  3. Step 3: Cross multiply
    65,045.22x = 89,764.14 × 36,750.30
  4. Step 4: Simplify right side
    65,045.22x = 3,298,859,074.24
  5. Step 5: Solve for x
    x = 3,298,859,074.24/65,045.22
  6. Step 6: Final answer
    x = 50,716.40

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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.