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Finding the Fourth Proportional to 64,575.91, 89,115.83 and 35,505.51

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Solution

The fourth proportional to 64,575.91, 89,115.83 and 35,505.51 is: 48,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.91 : 89,115.83 = 35,505.51 : x
  2. Step 2: Convert to fraction form
    64,575.91/89,115.83 = 35,505.51/x
  3. Step 3: Cross multiply
    64,575.91x = 89,115.83 × 35,505.51
  4. Step 4: Simplify right side
    64,575.91x = 3,164,102,671.57
  5. Step 5: Solve for x
    x = 3,164,102,671.57/64,575.91
  6. Step 6: Final answer
    x = 48,998.19

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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.