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Finding the Fourth Proportional to 62,964.83, 86,897.62 and 47,021.60

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Solution

The fourth proportional to 62,964.83, 86,897.62 and 47,021.60 is: 64,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,964.83 : 86,897.62 = 47,021.60 : x
  2. Step 2: Convert to fraction form
    62,964.83/86,897.62 = 47,021.60/x
  3. Step 3: Cross multiply
    62,964.83x = 86,897.62 × 47,021.60
  4. Step 4: Simplify right side
    62,964.83x = 4,086,065,228.28
  5. Step 5: Solve for x
    x = 4,086,065,228.28/62,964.83
  6. Step 6: Final answer
    x = 64,894.40

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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.