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Finding the Fourth Proportional to 61,805.74, 92,717.50 and 19,114.50

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Solution

The fourth proportional to 61,805.74, 92,717.50 and 19,114.50 is: 28,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805.74 : 92,717.50 = 19,114.50 : x
  2. Step 2: Convert to fraction form
    61,805.74/92,717.50 = 19,114.50/x
  3. Step 3: Cross multiply
    61,805.74x = 92,717.50 × 19,114.50
  4. Step 4: Simplify right side
    61,805.74x = 1,772,248,653.75
  5. Step 5: Solve for x
    x = 1,772,248,653.75/61,805.74
  6. Step 6: Final answer
    x = 28,674.50

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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.