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Finding the Fourth Proportional to 63,713.79, 87,925.91 and 35,420.09

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Solution

The fourth proportional to 63,713.79, 87,925.91 and 35,420.09 is: 48,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,713.79 : 87,925.91 = 35,420.09 : x
  2. Step 2: Convert to fraction form
    63,713.79/87,925.91 = 35,420.09/x
  3. Step 3: Cross multiply
    63,713.79x = 87,925.91 × 35,420.09
  4. Step 4: Simplify right side
    63,713.79x = 3,114,343,028.80
  5. Step 5: Solve for x
    x = 3,114,343,028.80/63,713.79
  6. Step 6: Final answer
    x = 48,880.20

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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.