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Finding the Fourth Proportional to 38,805.84, 53,542.71 and 22,663.99

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Solution

The fourth proportional to 38,805.84, 53,542.71 and 22,663.99 is: 31,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,805.84 : 53,542.71 = 22,663.99 : x
  2. Step 2: Convert to fraction form
    38,805.84/53,542.71 = 22,663.99/x
  3. Step 3: Cross multiply
    38,805.84x = 53,542.71 × 22,663.99
  4. Step 4: Simplify right side
    38,805.84x = 1,213,491,444.01
  5. Step 5: Solve for x
    x = 1,213,491,444.01/38,805.84
  6. Step 6: Final answer
    x = 31,270.85

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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.