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Finding the Fourth Proportional to 29,483.70, 40,712.13 and 22,401.06

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Solution

The fourth proportional to 29,483.70, 40,712.13 and 22,401.06 is: 30,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,483.70 : 40,712.13 = 22,401.06 : x
  2. Step 2: Convert to fraction form
    29,483.70/40,712.13 = 22,401.06/x
  3. Step 3: Cross multiply
    29,483.70x = 40,712.13 × 22,401.06
  4. Step 4: Simplify right side
    29,483.70x = 911,994,866.86
  5. Step 5: Solve for x
    x = 911,994,866.86/29,483.70
  6. Step 6: Final answer
    x = 30,932.17

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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.