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Finding the Fourth Proportional to 61,341.76, 92,032.08 and 21,898

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Solution

The fourth proportional to 61,341.76, 92,032.08 and 21,898 is: 32,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,341.76 : 92,032.08 = 21,898 : x
  2. Step 2: Convert to fraction form
    61,341.76/92,032.08 = 21,898/x
  3. Step 3: Cross multiply
    61,341.76x = 92,032.08 × 21,898
  4. Step 4: Simplify right side
    61,341.76x = 2,015,318,487.84
  5. Step 5: Solve for x
    x = 2,015,318,487.84/61,341.76
  6. Step 6: Final answer
    x = 32,853.94

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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.