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Finding the Fourth Proportional to 64,718.60, 89,277.41 and 44,540.45

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Solution

The fourth proportional to 64,718.60, 89,277.41 and 44,540.45 is: 61,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,718.60 : 89,277.41 = 44,540.45 : x
  2. Step 2: Convert to fraction form
    64,718.60/89,277.41 = 44,540.45/x
  3. Step 3: Cross multiply
    64,718.60x = 89,277.41 × 44,540.45
  4. Step 4: Simplify right side
    64,718.60x = 3,976,456,015.99
  5. Step 5: Solve for x
    x = 3,976,456,015.99/64,718.60
  6. Step 6: Final answer
    x = 61,442.25

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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.