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Finding the Fourth Proportional to 64,960.95, 89,646.41 and 35,152.95

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Solution

The fourth proportional to 64,960.95, 89,646.41 and 35,152.95 is: 48,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,960.95 : 89,646.41 = 35,152.95 : x
  2. Step 2: Convert to fraction form
    64,960.95/89,646.41 = 35,152.95/x
  3. Step 3: Cross multiply
    64,960.95x = 89,646.41 × 35,152.95
  4. Step 4: Simplify right side
    64,960.95x = 3,151,335,768.41
  5. Step 5: Solve for x
    x = 3,151,335,768.41/64,960.95
  6. Step 6: Final answer
    x = 48,511.23

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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.