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Finding the Fourth Proportional to 61,864.82, 92,808.84 and 28,133.28

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Solution

The fourth proportional to 61,864.82, 92,808.84 and 28,133.28 is: 42,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,864.82 : 92,808.84 = 28,133.28 : x
  2. Step 2: Convert to fraction form
    61,864.82/92,808.84 = 28,133.28/x
  3. Step 3: Cross multiply
    61,864.82x = 92,808.84 × 28,133.28
  4. Step 4: Simplify right side
    61,864.82x = 2,611,017,082.20
  5. Step 5: Solve for x
    x = 2,611,017,082.20/61,864.82
  6. Step 6: Final answer
    x = 42,205.20

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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.