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Finding the Fourth Proportional to 13,197.51, 19,794.11 and 4,881.47

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Solution

The fourth proportional to 13,197.51, 19,794.11 and 4,881.47 is: 7,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.51 : 19,794.11 = 4,881.47 : x
  2. Step 2: Convert to fraction form
    13,197.51/19,794.11 = 4,881.47/x
  3. Step 3: Cross multiply
    13,197.51x = 19,794.11 × 4,881.47
  4. Step 4: Simplify right side
    13,197.51x = 96,624,230.76
  5. Step 5: Solve for x
    x = 96,624,230.76/13,197.51
  6. Step 6: Final answer
    x = 7,321.40

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1.5x scale

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.