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Finding the Fourth Proportional to 14,577.01, 20,117.51 and 11,916.97

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Solution

The fourth proportional to 14,577.01, 20,117.51 and 11,916.97 is: 16,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.01 : 20,117.51 = 11,916.97 : x
  2. Step 2: Convert to fraction form
    14,577.01/20,117.51 = 11,916.97/x
  3. Step 3: Cross multiply
    14,577.01x = 20,117.51 × 11,916.97
  4. Step 4: Simplify right side
    14,577.01x = 239,739,703.56
  5. Step 5: Solve for x
    x = 239,739,703.56/14,577.01
  6. Step 6: Final answer
    x = 16,446.43

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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.