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Finding the Fourth Proportional to 64,691.63, 89,273.53 and 36,397.25

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Solution

The fourth proportional to 64,691.63, 89,273.53 and 36,397.25 is: 50,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,691.63 : 89,273.53 = 36,397.25 : x
  2. Step 2: Convert to fraction form
    64,691.63/89,273.53 = 36,397.25/x
  3. Step 3: Cross multiply
    64,691.63x = 89,273.53 × 36,397.25
  4. Step 4: Simplify right side
    64,691.63x = 3,249,310,989.79
  5. Step 5: Solve for x
    x = 3,249,310,989.79/64,691.63
  6. Step 6: Final answer
    x = 50,227.69

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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.