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Finding the Fourth Proportional to 61,252.66, 91,820.67 and 19,670.50

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Solution

The fourth proportional to 61,252.66, 91,820.67 and 19,670.50 is: 29,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,252.66 : 91,820.67 = 19,670.50 : x
  2. Step 2: Convert to fraction form
    61,252.66/91,820.67 = 19,670.50/x
  3. Step 3: Cross multiply
    61,252.66x = 91,820.67 × 19,670.50
  4. Step 4: Simplify right side
    61,252.66x = 1,806,158,489.24
  5. Step 5: Solve for x
    x = 1,806,158,489.24/61,252.66
  6. Step 6: Final answer
    x = 29,487.02

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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.