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Finding the Fourth Proportional to 64,641.96, 89,207.01 and 35,963.91

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Solution

The fourth proportional to 64,641.96, 89,207.01 and 35,963.91 is: 49,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,641.96 : 89,207.01 = 35,963.91 : x
  2. Step 2: Convert to fraction form
    64,641.96/89,207.01 = 35,963.91/x
  3. Step 3: Cross multiply
    64,641.96x = 89,207.01 × 35,963.91
  4. Step 4: Simplify right side
    64,641.96x = 3,208,232,879.01
  5. Step 5: Solve for x
    x = 3,208,232,879.01/64,641.96
  6. Step 6: Final answer
    x = 49,630.81

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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.