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Finding the Fourth Proportional to 13,300.03, 19,957.03 and 5,909.79

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Solution

The fourth proportional to 13,300.03, 19,957.03 and 5,909.79 is: 8,867.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.03 : 19,957.03 = 5,909.79 : x
  2. Step 2: Convert to fraction form
    13,300.03/19,957.03 = 5,909.79/x
  3. Step 3: Cross multiply
    13,300.03x = 19,957.03 × 5,909.79
  4. Step 4: Simplify right side
    13,300.03x = 117,941,841.55
  5. Step 5: Solve for x
    x = 117,941,841.55/13,300.03
  6. Step 6: Final answer
    x = 8,867.79

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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.