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Finding the Fourth Proportional to 64,966.80, 89,653.68 and 36,671.52

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Solution

The fourth proportional to 64,966.80, 89,653.68 and 36,671.52 is: 50,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,966.80 : 89,653.68 = 36,671.52 : x
  2. Step 2: Convert to fraction form
    64,966.80/89,653.68 = 36,671.52/x
  3. Step 3: Cross multiply
    64,966.80x = 89,653.68 × 36,671.52
  4. Step 4: Simplify right side
    64,966.80x = 3,287,736,719.19
  5. Step 5: Solve for x
    x = 3,287,736,719.19/64,966.80
  6. Step 6: Final answer
    x = 50,606.41

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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.