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Finding the Fourth Proportional to 62,707.91, 94,070.69 and 18,338

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Solution

The fourth proportional to 62,707.91, 94,070.69 and 18,338 is: 27,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,707.91 : 94,070.69 = 18,338 : x
  2. Step 2: Convert to fraction form
    62,707.91/94,070.69 = 18,338/x
  3. Step 3: Cross multiply
    62,707.91x = 94,070.69 × 18,338
  4. Step 4: Simplify right side
    62,707.91x = 1,725,068,221.53
  5. Step 5: Solve for x
    x = 1,725,068,221.53/62,707.91
  6. Step 6: Final answer
    x = 27,509.58

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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.