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Finding the Fourth Proportional to 29,135.85, 40,186.17 and 19,048.11

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Solution

The fourth proportional to 29,135.85, 40,186.17 and 19,048.11 is: 26,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135.85 : 40,186.17 = 19,048.11 : x
  2. Step 2: Convert to fraction form
    29,135.85/40,186.17 = 19,048.11/x
  3. Step 3: Cross multiply
    29,135.85x = 40,186.17 × 19,048.11
  4. Step 4: Simplify right side
    29,135.85x = 765,470,586.64
  5. Step 5: Solve for x
    x = 765,470,586.64/29,135.85
  6. Step 6: Final answer
    x = 26,272.46

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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.