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Finding the Fourth Proportional to 14,065.42, 21,101.48 and 7,490.24

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Solution

The fourth proportional to 14,065.42, 21,101.48 and 7,490.24 is: 11,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.42 : 21,101.48 = 7,490.24 : x
  2. Step 2: Convert to fraction form
    14,065.42/21,101.48 = 7,490.24/x
  3. Step 3: Cross multiply
    14,065.42x = 21,101.48 × 7,490.24
  4. Step 4: Simplify right side
    14,065.42x = 158,055,149.56
  5. Step 5: Solve for x
    x = 158,055,149.56/14,065.42
  6. Step 6: Final answer
    x = 11,237.14

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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.