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Finding the Fourth Proportional to 64,753.98, 89,358.06 and 36,072.96

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Solution

The fourth proportional to 64,753.98, 89,358.06 and 36,072.96 is: 49,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.98 : 89,358.06 = 36,072.96 : x
  2. Step 2: Convert to fraction form
    64,753.98/89,358.06 = 36,072.96/x
  3. Step 3: Cross multiply
    64,753.98x = 89,358.06 × 36,072.96
  4. Step 4: Simplify right side
    64,753.98x = 3,223,409,724.06
  5. Step 5: Solve for x
    x = 3,223,409,724.06/64,753.98
  6. Step 6: Final answer
    x = 49,779.33

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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.