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Finding the Fourth Proportional to 64,962.75, 89,648.60 and 35,154.75

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Solution

The fourth proportional to 64,962.75, 89,648.60 and 35,154.75 is: 48,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,962.75 : 89,648.60 = 35,154.75 : x
  2. Step 2: Convert to fraction form
    64,962.75/89,648.60 = 35,154.75/x
  3. Step 3: Cross multiply
    64,962.75x = 89,648.60 × 35,154.75
  4. Step 4: Simplify right side
    64,962.75x = 3,151,573,945.08
  5. Step 5: Solve for x
    x = 3,151,573,945.08/64,962.75
  6. Step 6: Final answer
    x = 48,513.56

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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.