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Finding the Fourth Proportional to 71,053.82, 98,054.29 and 39,222.74

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Solution

The fourth proportional to 71,053.82, 98,054.29 and 39,222.74 is: 54,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,053.82 : 98,054.29 = 39,222.74 : x
  2. Step 2: Convert to fraction form
    71,053.82/98,054.29 = 39,222.74/x
  3. Step 3: Cross multiply
    71,053.82x = 98,054.29 × 39,222.74
  4. Step 4: Simplify right side
    71,053.82x = 3,845,957,922.55
  5. Step 5: Solve for x
    x = 3,845,957,922.55/71,053.82
  6. Step 6: Final answer
    x = 54,127.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.