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Finding the Fourth Proportional to 14,431.57, 21,629.94 and 7,024.93

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Solution

The fourth proportional to 14,431.57, 21,629.94 and 7,024.93 is: 10,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.57 : 21,629.94 = 7,024.93 : x
  2. Step 2: Convert to fraction form
    14,431.57/21,629.94 = 7,024.93/x
  3. Step 3: Cross multiply
    14,431.57x = 21,629.94 × 7,024.93
  4. Step 4: Simplify right side
    14,431.57x = 151,948,814.40
  5. Step 5: Solve for x
    x = 151,948,814.40/14,431.57
  6. Step 6: Final answer
    x = 10,528.92

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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.