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Finding the Fourth Proportional to 61,246.80, 91,870.62 and 16,875.96

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Solution

The fourth proportional to 61,246.80, 91,870.62 and 16,875.96 is: 25,314.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,246.80 : 91,870.62 = 16,875.96 : x
  2. Step 2: Convert to fraction form
    61,246.80/91,870.62 = 16,875.96/x
  3. Step 3: Cross multiply
    61,246.80x = 91,870.62 × 16,875.96
  4. Step 4: Simplify right side
    61,246.80x = 1,550,404,908.30
  5. Step 5: Solve for x
    x = 1,550,404,908.30/61,246.80
  6. Step 6: Final answer
    x = 25,314.06

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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.