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Finding the Fourth Proportional to 62,984.76, 86,914.98 and 34,690.45

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Solution

The fourth proportional to 62,984.76, 86,914.98 and 34,690.45 is: 47,870.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,984.76 : 86,914.98 = 34,690.45 : x
  2. Step 2: Convert to fraction form
    62,984.76/86,914.98 = 34,690.45/x
  3. Step 3: Cross multiply
    62,984.76x = 86,914.98 × 34,690.45
  4. Step 4: Simplify right side
    62,984.76x = 3,015,119,159.91
  5. Step 5: Solve for x
    x = 3,015,119,159.91/62,984.76
  6. Step 6: Final answer
    x = 47,870.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.