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Finding the Fourth Proportional to 64,525.50, 89,045.19 and 36,231.21

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Solution

The fourth proportional to 64,525.50, 89,045.19 and 36,231.21 is: 49,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,525.50 : 89,045.19 = 36,231.21 : x
  2. Step 2: Convert to fraction form
    64,525.50/89,045.19 = 36,231.21/x
  3. Step 3: Cross multiply
    64,525.50x = 89,045.19 × 36,231.21
  4. Step 4: Simplify right side
    64,525.50x = 3,226,214,978.38
  5. Step 5: Solve for x
    x = 3,226,214,978.38/64,525.50
  6. Step 6: Final answer
    x = 49,999.07

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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.