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Finding the Fourth Proportional to 58,299.84, 87,491.52 and 20,859.84

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Solution

The fourth proportional to 58,299.84, 87,491.52 and 20,859.84 is: 31,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,299.84 : 87,491.52 = 20,859.84 : x
  2. Step 2: Convert to fraction form
    58,299.84/87,491.52 = 20,859.84/x
  3. Step 3: Cross multiply
    58,299.84x = 87,491.52 × 20,859.84
  4. Step 4: Simplify right side
    58,299.84x = 1,825,059,108.56
  5. Step 5: Solve for x
    x = 1,825,059,108.56/58,299.84
  6. Step 6: Final answer
    x = 31,304.70

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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.