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Finding the Fourth Proportional to 29,407.79, 44,111.83 and 7,221.17

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Solution

The fourth proportional to 29,407.79, 44,111.83 and 7,221.17 is: 10,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,407.79 : 44,111.83 = 7,221.17 : x
  2. Step 2: Convert to fraction form
    29,407.79/44,111.83 = 7,221.17/x
  3. Step 3: Cross multiply
    29,407.79x = 44,111.83 × 7,221.17
  4. Step 4: Simplify right side
    29,407.79x = 318,539,137.82
  5. Step 5: Solve for x
    x = 318,539,137.82/29,407.79
  6. Step 6: Final answer
    x = 10,831.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.