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Finding the Fourth Proportional to 58,424.63, 87,657.35 and 18,449.82

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Solution

The fourth proportional to 58,424.63, 87,657.35 and 18,449.82 is: 27,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,424.63 : 87,657.35 = 18,449.82 : x
  2. Step 2: Convert to fraction form
    58,424.63/87,657.35 = 18,449.82/x
  3. Step 3: Cross multiply
    58,424.63x = 87,657.35 × 18,449.82
  4. Step 4: Simplify right side
    58,424.63x = 1,617,262,236.93
  5. Step 5: Solve for x
    x = 1,617,262,236.93/58,424.63
  6. Step 6: Final answer
    x = 27,681.17

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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.