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Finding the Fourth Proportional to 61,638.80, 92,457.99 and 14,891.67

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Solution

The fourth proportional to 61,638.80, 92,457.99 and 14,891.67 is: 22,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638.80 : 92,457.99 = 14,891.67 : x
  2. Step 2: Convert to fraction form
    61,638.80/92,457.99 = 14,891.67/x
  3. Step 3: Cross multiply
    61,638.80x = 92,457.99 × 14,891.67
  4. Step 4: Simplify right side
    61,638.80x = 1,376,853,875.94
  5. Step 5: Solve for x
    x = 1,376,853,875.94/61,638.80
  6. Step 6: Final answer
    x = 22,337.46

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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.