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Finding the Fourth Proportional to 67,263, 92,822.94 and 38,985.09

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Solution

The fourth proportional to 67,263, 92,822.94 and 38,985.09 is: 53,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,263 : 92,822.94 = 38,985.09 : x
  2. Step 2: Convert to fraction form
    67,263/92,822.94 = 38,985.09/x
  3. Step 3: Cross multiply
    67,263x = 92,822.94 × 38,985.09
  4. Step 4: Simplify right side
    67,263x = 3,618,710,669.96
  5. Step 5: Solve for x
    x = 3,618,710,669.96/67,263
  6. Step 6: Final answer
    x = 53,799.42

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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.