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Finding the Fourth Proportional to 66,652.96, 100,004.69 and 40,017.55

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Solution

The fourth proportional to 66,652.96, 100,004.69 and 40,017.55 is: 60,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,652.96 : 100,004.69 = 40,017.55 : x
  2. Step 2: Convert to fraction form
    66,652.96/100,004.69 = 40,017.55/x
  3. Step 3: Cross multiply
    66,652.96x = 100,004.69 × 40,017.55
  4. Step 4: Simplify right side
    66,652.96x = 4,001,941,982.20
  5. Step 5: Solve for x
    x = 4,001,941,982.20/66,652.96
  6. Step 6: Final answer
    x = 60,041.48

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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.