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Finding the Fourth Proportional to 63,021.50, 86,971.50 and 34,729.02

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Solution

The fourth proportional to 63,021.50, 86,971.50 and 34,729.02 is: 47,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.50 : 86,971.50 = 34,729.02 : x
  2. Step 2: Convert to fraction form
    63,021.50/86,971.50 = 34,729.02/x
  3. Step 3: Cross multiply
    63,021.50x = 86,971.50 × 34,729.02
  4. Step 4: Simplify right side
    63,021.50x = 3,020,434,962.93
  5. Step 5: Solve for x
    x = 3,020,434,962.93/63,021.50
  6. Step 6: Final answer
    x = 47,927.06

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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.