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Finding the Fourth Proportional to 29,473.52, 40,710.14 and 21,394.38

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Solution

The fourth proportional to 29,473.52, 40,710.14 and 21,394.38 is: 29,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,473.52 : 40,710.14 = 21,394.38 : x
  2. Step 2: Convert to fraction form
    29,473.52/40,710.14 = 21,394.38/x
  3. Step 3: Cross multiply
    29,473.52x = 40,710.14 × 21,394.38
  4. Step 4: Simplify right side
    29,473.52x = 870,968,222.28
  5. Step 5: Solve for x
    x = 870,968,222.28/29,473.52
  6. Step 6: Final answer
    x = 29,550.87

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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.