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Finding the Fourth Proportional to 64,940.88, 89,618.28 and 35,132.88

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Solution

The fourth proportional to 64,940.88, 89,618.28 and 35,132.88 is: 48,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,940.88 : 89,618.28 = 35,132.88 : x
  2. Step 2: Convert to fraction form
    64,940.88/89,618.28 = 35,132.88/x
  3. Step 3: Cross multiply
    64,940.88x = 89,618.28 × 35,132.88
  4. Step 4: Simplify right side
    64,940.88x = 3,148,548,277.05
  5. Step 5: Solve for x
    x = 3,148,548,277.05/64,940.88
  6. Step 6: Final answer
    x = 48,483.30

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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.