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Finding the Fourth Proportional to 14,057.70, 21,080.36 and 7,482.33

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Solution

The fourth proportional to 14,057.70, 21,080.36 and 7,482.33 is: 11,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.70 : 21,080.36 = 7,482.33 : x
  2. Step 2: Convert to fraction form
    14,057.70/21,080.36 = 7,482.33/x
  3. Step 3: Cross multiply
    14,057.70x = 21,080.36 × 7,482.33
  4. Step 4: Simplify right side
    14,057.70x = 157,730,172.63
  5. Step 5: Solve for x
    x = 157,730,172.63/14,057.70
  6. Step 6: Final answer
    x = 11,220.20

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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.