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Finding the Fourth Proportional to 14,465.93, 19,965.11 and 9,161.24

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Solution

The fourth proportional to 14,465.93, 19,965.11 and 9,161.24 is: 12,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.93 : 19,965.11 = 9,161.24 : x
  2. Step 2: Convert to fraction form
    14,465.93/19,965.11 = 9,161.24/x
  3. Step 3: Cross multiply
    14,465.93x = 19,965.11 × 9,161.24
  4. Step 4: Simplify right side
    14,465.93x = 182,905,018.70
  5. Step 5: Solve for x
    x = 182,905,018.70/14,465.93
  6. Step 6: Final answer
    x = 12,643.85

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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.