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Finding the Fourth Proportional to 64,961.58, 89,641.04 and 38,099.15

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Solution

The fourth proportional to 64,961.58, 89,641.04 and 38,099.15 is: 52,573.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,961.58 : 89,641.04 = 38,099.15 : x
  2. Step 2: Convert to fraction form
    64,961.58/89,641.04 = 38,099.15/x
  3. Step 3: Cross multiply
    64,961.58x = 89,641.04 × 38,099.15
  4. Step 4: Simplify right side
    64,961.58x = 3,415,247,429.12
  5. Step 5: Solve for x
    x = 3,415,247,429.12/64,961.58
  6. Step 6: Final answer
    x = 52,573.34

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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.