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Finding the Fourth Proportional to 29,489.69, 40,648.35 and 19,926.59

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Solution

The fourth proportional to 29,489.69, 40,648.35 and 19,926.59 is: 27,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,489.69 : 40,648.35 = 19,926.59 : x
  2. Step 2: Convert to fraction form
    29,489.69/40,648.35 = 19,926.59/x
  3. Step 3: Cross multiply
    29,489.69x = 40,648.35 × 19,926.59
  4. Step 4: Simplify right side
    29,489.69x = 809,983,004.63
  5. Step 5: Solve for x
    x = 809,983,004.63/29,489.69
  6. Step 6: Final answer
    x = 27,466.65

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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.