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Finding the Fourth Proportional to 68,212.98, 94,136.54 and 39,533.63

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Solution

The fourth proportional to 68,212.98, 94,136.54 and 39,533.63 is: 54,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,212.98 : 94,136.54 = 39,533.63 : x
  2. Step 2: Convert to fraction form
    68,212.98/94,136.54 = 39,533.63/x
  3. Step 3: Cross multiply
    68,212.98x = 94,136.54 × 39,533.63
  4. Step 4: Simplify right side
    68,212.98x = 3,721,558,473.49
  5. Step 5: Solve for x
    x = 3,721,558,473.49/68,212.98
  6. Step 6: Final answer
    x = 54,557.92

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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.