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Finding the Fourth Proportional to 64,886, 89,555.64 and 36,592.16

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Solution

The fourth proportional to 64,886, 89,555.64 and 36,592.16 is: 50,504.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886 : 89,555.64 = 36,592.16 : x
  2. Step 2: Convert to fraction form
    64,886/89,555.64 = 36,592.16/x
  3. Step 3: Cross multiply
    64,886x = 89,555.64 × 36,592.16
  4. Step 4: Simplify right side
    64,886x = 3,277,034,307.78
  5. Step 5: Solve for x
    x = 3,277,034,307.78/64,886
  6. Step 6: Final answer
    x = 50,504.49

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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.