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Finding the Fourth Proportional to 64,693.94, 89,275.65 and 36,397.94

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Solution

The fourth proportional to 64,693.94, 89,275.65 and 36,397.94 is: 50,228.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693.94 : 89,275.65 = 36,397.94 : x
  2. Step 2: Convert to fraction form
    64,693.94/89,275.65 = 36,397.94/x
  3. Step 3: Cross multiply
    64,693.94x = 89,275.65 × 36,397.94
  4. Step 4: Simplify right side
    64,693.94x = 3,249,449,752.16
  5. Step 5: Solve for x
    x = 3,249,449,752.16/64,693.94
  6. Step 6: Final answer
    x = 50,228.04

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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.