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Finding the Fourth Proportional to 61,663.90, 92,498.45 and 19,543.06

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Solution

The fourth proportional to 61,663.90, 92,498.45 and 19,543.06 is: 29,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663.90 : 92,498.45 = 19,543.06 : x
  2. Step 2: Convert to fraction form
    61,663.90/92,498.45 = 19,543.06/x
  3. Step 3: Cross multiply
    61,663.90x = 92,498.45 × 19,543.06
  4. Step 4: Simplify right side
    61,663.90x = 1,807,702,198.05
  5. Step 5: Solve for x
    x = 1,807,702,198.05/61,663.90
  6. Step 6: Final answer
    x = 29,315.40

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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.