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Finding the Fourth Proportional to 64,547.80, 89,084.32 and 36,253.49

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Solution

The fourth proportional to 64,547.80, 89,084.32 and 36,253.49 is: 50,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,547.80 : 89,084.32 = 36,253.49 : x
  2. Step 2: Convert to fraction form
    64,547.80/89,084.32 = 36,253.49/x
  3. Step 3: Cross multiply
    64,547.80x = 89,084.32 × 36,253.49
  4. Step 4: Simplify right side
    64,547.80x = 3,229,617,058.86
  5. Step 5: Solve for x
    x = 3,229,617,058.86/64,547.80
  6. Step 6: Final answer
    x = 50,034.51

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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.