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Finding the Fourth Proportional to 62,641.52, 93,976.10 and 18,271.74

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Solution

The fourth proportional to 62,641.52, 93,976.10 and 18,271.74 is: 27,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,641.52 : 93,976.10 = 18,271.74 : x
  2. Step 2: Convert to fraction form
    62,641.52/93,976.10 = 18,271.74/x
  3. Step 3: Cross multiply
    62,641.52x = 93,976.10 × 18,271.74
  4. Step 4: Simplify right side
    62,641.52x = 1,717,106,774.06
  5. Step 5: Solve for x
    x = 1,717,106,774.06/62,641.52
  6. Step 6: Final answer
    x = 27,411.64

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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.