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Finding the Fourth Proportional to 58,487.37, 87,731.05 and 19,048.47

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Solution

The fourth proportional to 58,487.37, 87,731.05 and 19,048.47 is: 28,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.37 : 87,731.05 = 19,048.47 : x
  2. Step 2: Convert to fraction form
    58,487.37/87,731.05 = 19,048.47/x
  3. Step 3: Cross multiply
    58,487.37x = 87,731.05 × 19,048.47
  4. Step 4: Simplify right side
    58,487.37x = 1,671,142,273.99
  5. Step 5: Solve for x
    x = 1,671,142,273.99/58,487.37
  6. Step 6: Final answer
    x = 28,572.70

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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.