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Finding the Fourth Proportional to 19,716, 29,525.94 and 10,363.74

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Solution

The fourth proportional to 19,716, 29,525.94 and 10,363.74 is: 15,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716 : 29,525.94 = 10,363.74 : x
  2. Step 2: Convert to fraction form
    19,716/29,525.94 = 10,363.74/x
  3. Step 3: Cross multiply
    19,716x = 29,525.94 × 10,363.74
  4. Step 4: Simplify right side
    19,716x = 305,999,165.42
  5. Step 5: Solve for x
    x = 305,999,165.42/19,716
  6. Step 6: Final answer
    x = 15,520.35

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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.