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Finding the Fourth Proportional to 17,369.76, 23,973.50 and 9,917.76

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Solution

The fourth proportional to 17,369.76, 23,973.50 and 9,917.76 is: 13,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,369.76 : 23,973.50 = 9,917.76 : x
  2. Step 2: Convert to fraction form
    17,369.76/23,973.50 = 9,917.76/x
  3. Step 3: Cross multiply
    17,369.76x = 23,973.50 × 9,917.76
  4. Step 4: Simplify right side
    17,369.76x = 237,763,419.36
  5. Step 5: Solve for x
    x = 237,763,419.36/17,369.76
  6. Step 6: Final answer
    x = 13,688.35

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1.5x scale

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.