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Finding the Fourth Proportional to 64,704.88, 89,277.96 and 36,400.24

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Solution

The fourth proportional to 64,704.88, 89,277.96 and 36,400.24 is: 50,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.88 : 89,277.96 = 36,400.24 : x
  2. Step 2: Convert to fraction form
    64,704.88/89,277.96 = 36,400.24/x
  3. Step 3: Cross multiply
    64,704.88x = 89,277.96 × 36,400.24
  4. Step 4: Simplify right side
    64,704.88x = 3,249,739,170.71
  5. Step 5: Solve for x
    x = 3,249,739,170.71/64,704.88
  6. Step 6: Final answer
    x = 50,224.02

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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.