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Finding the Fourth Proportional to 64,894.94, 89,554.84 and 36,214.29

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Solution

The fourth proportional to 64,894.94, 89,554.84 and 36,214.29 is: 49,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.94 : 89,554.84 = 36,214.29 : x
  2. Step 2: Convert to fraction form
    64,894.94/89,554.84 = 36,214.29/x
  3. Step 3: Cross multiply
    64,894.94x = 89,554.84 × 36,214.29
  4. Step 4: Simplify right side
    64,894.94x = 3,243,164,946.66
  5. Step 5: Solve for x
    x = 3,243,164,946.66/64,894.94
  6. Step 6: Final answer
    x = 49,975.63

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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.