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Finding the Fourth Proportional to 14,032.80, 21,010.80 and 10,960.80

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Solution

The fourth proportional to 14,032.80, 21,010.80 and 10,960.80 is: 16,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,032.80 : 21,010.80 = 10,960.80 : x
  2. Step 2: Convert to fraction form
    14,032.80/21,010.80 = 10,960.80/x
  3. Step 3: Cross multiply
    14,032.80x = 21,010.80 × 10,960.80
  4. Step 4: Simplify right side
    14,032.80x = 230,295,176.64
  5. Step 5: Solve for x
    x = 230,295,176.64/14,032.80
  6. Step 6: Final answer
    x = 16,411.21

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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.