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Finding the Fourth Proportional to 29,048.25, 40,086.59 and 15,800.25

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Solution

The fourth proportional to 29,048.25, 40,086.59 and 15,800.25 is: 21,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,048.25 : 40,086.59 = 15,800.25 : x
  2. Step 2: Convert to fraction form
    29,048.25/40,086.59 = 15,800.25/x
  3. Step 3: Cross multiply
    29,048.25x = 40,086.59 × 15,800.25
  4. Step 4: Simplify right side
    29,048.25x = 633,378,064.65
  5. Step 5: Solve for x
    x = 633,378,064.65/29,048.25
  6. Step 6: Final answer
    x = 21,804.35

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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.