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Finding the Fourth Proportional to 29,092.81, 40,148.08 and 15,844.81

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Solution

The fourth proportional to 29,092.81, 40,148.08 and 15,844.81 is: 21,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,092.81 : 40,148.08 = 15,844.81 : x
  2. Step 2: Convert to fraction form
    29,092.81/40,148.08 = 15,844.81/x
  3. Step 3: Cross multiply
    29,092.81x = 40,148.08 × 15,844.81
  4. Step 4: Simplify right side
    29,092.81x = 636,138,699.46
  5. Step 5: Solve for x
    x = 636,138,699.46/29,092.81
  6. Step 6: Final answer
    x = 21,865.84

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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.