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Finding the Fourth Proportional to 8,663.79, 13,001.18 and 4,973.25

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Solution

The fourth proportional to 8,663.79, 13,001.18 and 4,973.25 is: 7,463.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.79 : 13,001.18 = 4,973.25 : x
  2. Step 2: Convert to fraction form
    8,663.79/13,001.18 = 4,973.25/x
  3. Step 3: Cross multiply
    8,663.79x = 13,001.18 × 4,973.25
  4. Step 4: Simplify right side
    8,663.79x = 64,658,093.57
  5. Step 5: Solve for x
    x = 64,658,093.57/8,663.79
  6. Step 6: Final answer
    x = 7,463.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.