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Finding the Fourth Proportional to 52,796.70, 72,859.23 and 28,924.86

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Solution

The fourth proportional to 52,796.70, 72,859.23 and 28,924.86 is: 39,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,796.70 : 72,859.23 = 28,924.86 : x
  2. Step 2: Convert to fraction form
    52,796.70/72,859.23 = 28,924.86/x
  3. Step 3: Cross multiply
    52,796.70x = 72,859.23 × 28,924.86
  4. Step 4: Simplify right side
    52,796.70x = 2,107,443,027.46
  5. Step 5: Solve for x
    x = 2,107,443,027.46/52,796.70
  6. Step 6: Final answer
    x = 39,916.19

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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.