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Finding the Fourth Proportional to 64,863.59, 89,513.13 and 36,569.28

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Solution

The fourth proportional to 64,863.59, 89,513.13 and 36,569.28 is: 50,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,863.59 : 89,513.13 = 36,569.28 : x
  2. Step 2: Convert to fraction form
    64,863.59/89,513.13 = 36,569.28/x
  3. Step 3: Cross multiply
    64,863.59x = 89,513.13 × 36,569.28
  4. Step 4: Simplify right side
    64,863.59x = 3,273,430,714.65
  5. Step 5: Solve for x
    x = 3,273,430,714.65/64,863.59
  6. Step 6: Final answer
    x = 50,466.38

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1.5x scale

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.