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Finding the Fourth Proportional to 58,890.80, 88,359.65 and 21,453.41

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Solution

The fourth proportional to 58,890.80, 88,359.65 and 21,453.41 is: 32,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,890.80 : 88,359.65 = 21,453.41 : x
  2. Step 2: Convert to fraction form
    58,890.80/88,359.65 = 21,453.41/x
  3. Step 3: Cross multiply
    58,890.80x = 88,359.65 × 21,453.41
  4. Step 4: Simplify right side
    58,890.80x = 1,895,615,798.91
  5. Step 5: Solve for x
    x = 1,895,615,798.91/58,890.80
  6. Step 6: Final answer
    x = 32,188.66

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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.