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Finding the Fourth Proportional to 64,890.98, 89,541.42 and 38,027.33

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Solution

The fourth proportional to 64,890.98, 89,541.42 and 38,027.33 is: 52,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.98 : 89,541.42 = 38,027.33 : x
  2. Step 2: Convert to fraction form
    64,890.98/89,541.42 = 38,027.33/x
  3. Step 3: Cross multiply
    64,890.98x = 89,541.42 × 38,027.33
  4. Step 4: Simplify right side
    64,890.98x = 3,405,021,127.01
  5. Step 5: Solve for x
    x = 3,405,021,127.01/64,890.98
  6. Step 6: Final answer
    x = 52,472.95

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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.