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Finding the Fourth Proportional to 14,261.74, 21,381.05 and 5,947.99

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Solution

The fourth proportional to 14,261.74, 21,381.05 and 5,947.99 is: 8,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.74 : 21,381.05 = 5,947.99 : x
  2. Step 2: Convert to fraction form
    14,261.74/21,381.05 = 5,947.99/x
  3. Step 3: Cross multiply
    14,261.74x = 21,381.05 × 5,947.99
  4. Step 4: Simplify right side
    14,261.74x = 127,174,233.01
  5. Step 5: Solve for x
    x = 127,174,233.01/14,261.74
  6. Step 6: Final answer
    x = 8,917.16

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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.