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Finding the Fourth Proportional to 58,578.40, 87,866.80 and 14,205.52

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Solution

The fourth proportional to 58,578.40, 87,866.80 and 14,205.52 is: 21,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,578.40 : 87,866.80 = 14,205.52 : x
  2. Step 2: Convert to fraction form
    58,578.40/87,866.80 = 14,205.52/x
  3. Step 3: Cross multiply
    58,578.40x = 87,866.80 × 14,205.52
  4. Step 4: Simplify right side
    58,578.40x = 1,248,193,584.74
  5. Step 5: Solve for x
    x = 1,248,193,584.74/58,578.40
  6. Step 6: Final answer
    x = 21,308.09

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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.