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Finding the Fourth Proportional to 63,551.79, 87,698.50 and 34,870.80

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Solution

The fourth proportional to 63,551.79, 87,698.50 and 34,870.80 is: 48,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,551.79 : 87,698.50 = 34,870.80 : x
  2. Step 2: Convert to fraction form
    63,551.79/87,698.50 = 34,870.80/x
  3. Step 3: Cross multiply
    63,551.79x = 87,698.50 × 34,870.80
  4. Step 4: Simplify right side
    63,551.79x = 3,058,117,095.49
  5. Step 5: Solve for x
    x = 3,058,117,095.49/63,551.79
  6. Step 6: Final answer
    x = 48,120.08

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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.