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Finding the Fourth Proportional to 65,765.52, 98,653.68 and 28,326.48

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Solution

The fourth proportional to 65,765.52, 98,653.68 and 28,326.48 is: 42,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765.52 : 98,653.68 = 28,326.48 : x
  2. Step 2: Convert to fraction form
    65,765.52/98,653.68 = 28,326.48/x
  3. Step 3: Cross multiply
    65,765.52x = 98,653.68 × 28,326.48
  4. Step 4: Simplify right side
    65,765.52x = 2,794,511,493.45
  5. Step 5: Solve for x
    x = 2,794,511,493.45/65,765.52
  6. Step 6: Final answer
    x = 42,492.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.