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Finding the Fourth Proportional to 58,532.58, 87,789.95 and 19,089.63

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Solution

The fourth proportional to 58,532.58, 87,789.95 and 19,089.63 is: 28,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,532.58 : 87,789.95 = 19,089.63 : x
  2. Step 2: Convert to fraction form
    58,532.58/87,789.95 = 19,089.63/x
  3. Step 3: Cross multiply
    58,532.58x = 87,789.95 × 19,089.63
  4. Step 4: Simplify right side
    58,532.58x = 1,675,877,663.22
  5. Step 5: Solve for x
    x = 1,675,877,663.22/58,532.58
  6. Step 6: Final answer
    x = 28,631.54

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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.