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Finding the Fourth Proportional to 39,605.68, 54,663.06 and 22,838.68

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Solution

The fourth proportional to 39,605.68, 54,663.06 and 22,838.68 is: 31,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,605.68 : 54,663.06 = 22,838.68 : x
  2. Step 2: Convert to fraction form
    39,605.68/54,663.06 = 22,838.68/x
  3. Step 3: Cross multiply
    39,605.68x = 54,663.06 × 22,838.68
  4. Step 4: Simplify right side
    39,605.68x = 1,248,432,135.16
  5. Step 5: Solve for x
    x = 1,248,432,135.16/39,605.68
  6. Step 6: Final answer
    x = 31,521.54

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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.