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Finding the Fourth Proportional to 14,052.80, 21,072.86 and 7,477.58

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Solution

The fourth proportional to 14,052.80, 21,072.86 and 7,477.58 is: 11,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.80 : 21,072.86 = 7,477.58 : x
  2. Step 2: Convert to fraction form
    14,052.80/21,072.86 = 7,477.58/x
  3. Step 3: Cross multiply
    14,052.80x = 21,072.86 × 7,477.58
  4. Step 4: Simplify right side
    14,052.80x = 157,573,996.48
  5. Step 5: Solve for x
    x = 157,573,996.48/14,052.80
  6. Step 6: Final answer
    x = 11,213.00

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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.