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Finding the Fourth Proportional to 63,380.81, 87,466.55 and 34,699.99

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Solution

The fourth proportional to 63,380.81, 87,466.55 and 34,699.99 is: 47,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,380.81 : 87,466.55 = 34,699.99 : x
  2. Step 2: Convert to fraction form
    63,380.81/87,466.55 = 34,699.99/x
  3. Step 3: Cross multiply
    63,380.81x = 87,466.55 × 34,699.99
  4. Step 4: Simplify right side
    63,380.81x = 3,035,088,606.42
  5. Step 5: Solve for x
    x = 3,035,088,606.42/63,380.81
  6. Step 6: Final answer
    x = 47,886.56

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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.