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Finding the Fourth Proportional to 35,447.61, 48,917.17 and 20,339.94

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Solution

The fourth proportional to 35,447.61, 48,917.17 and 20,339.94 is: 28,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,447.61 : 48,917.17 = 20,339.94 : x
  2. Step 2: Convert to fraction form
    35,447.61/48,917.17 = 20,339.94/x
  3. Step 3: Cross multiply
    35,447.61x = 48,917.17 × 20,339.94
  4. Step 4: Simplify right side
    35,447.61x = 994,972,302.77
  5. Step 5: Solve for x
    x = 994,972,302.77/35,447.61
  6. Step 6: Final answer
    x = 28,068.81

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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.