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Finding the Fourth Proportional to 65,233.08, 90,023.76 and 36,938.16

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Solution

The fourth proportional to 65,233.08, 90,023.76 and 36,938.16 is: 50,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,233.08 : 90,023.76 = 36,938.16 : x
  2. Step 2: Convert to fraction form
    65,233.08/90,023.76 = 36,938.16/x
  3. Step 3: Cross multiply
    65,233.08x = 90,023.76 × 36,938.16
  4. Step 4: Simplify right side
    65,233.08x = 3,325,312,050.68
  5. Step 5: Solve for x
    x = 3,325,312,050.68/65,233.08
  6. Step 6: Final answer
    x = 50,975.86

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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.