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Finding the Fourth Proportional to 64,879.52, 89,542.40 and 38,032.67

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Solution

The fourth proportional to 64,879.52, 89,542.40 and 38,032.67 is: 52,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.52 : 89,542.40 = 38,032.67 : x
  2. Step 2: Convert to fraction form
    64,879.52/89,542.40 = 38,032.67/x
  3. Step 3: Cross multiply
    64,879.52x = 89,542.40 × 38,032.67
  4. Step 4: Simplify right side
    64,879.52x = 3,405,536,583.90
  5. Step 5: Solve for x
    x = 3,405,536,583.90/64,879.52
  6. Step 6: Final answer
    x = 52,490.17

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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.