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Finding the Fourth Proportional to 66,748.32, 100,122.48 and 22,362.48

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Solution

The fourth proportional to 66,748.32, 100,122.48 and 22,362.48 is: 33,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748.32 : 100,122.48 = 22,362.48 : x
  2. Step 2: Convert to fraction form
    66,748.32/100,122.48 = 22,362.48/x
  3. Step 3: Cross multiply
    66,748.32x = 100,122.48 × 22,362.48
  4. Step 4: Simplify right side
    66,748.32x = 2,238,986,956.55
  5. Step 5: Solve for x
    x = 2,238,986,956.55/66,748.32
  6. Step 6: Final answer
    x = 33,543.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.