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Finding the Fourth Proportional to 72,887.77, 109,294.12 and 33,411.07

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Solution

The fourth proportional to 72,887.77, 109,294.12 and 33,411.07 is: 50,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,887.77 : 109,294.12 = 33,411.07 : x
  2. Step 2: Convert to fraction form
    72,887.77/109,294.12 = 33,411.07/x
  3. Step 3: Cross multiply
    72,887.77x = 109,294.12 × 33,411.07
  4. Step 4: Simplify right side
    72,887.77x = 3,651,633,493.91
  5. Step 5: Solve for x
    x = 3,651,633,493.91/72,887.77
  6. Step 6: Final answer
    x = 50,099.40

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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.