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Finding the Fourth Proportional to 8,848.20, 12,205.23 and 5,662.20

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Solution

The fourth proportional to 8,848.20, 12,205.23 and 5,662.20 is: 7,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,848.20 : 12,205.23 = 5,662.20 : x
  2. Step 2: Convert to fraction form
    8,848.20/12,205.23 = 5,662.20/x
  3. Step 3: Cross multiply
    8,848.20x = 12,205.23 × 5,662.20
  4. Step 4: Simplify right side
    8,848.20x = 69,108,453.31
  5. Step 5: Solve for x
    x = 69,108,453.31/8,848.20
  6. Step 6: Final answer
    x = 7,810.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.