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Finding the Fourth Proportional to 15,636.24, 21,577.52 and 8,562.24

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Solution

The fourth proportional to 15,636.24, 21,577.52 and 8,562.24 is: 11,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.24 : 21,577.52 = 8,562.24 : x
  2. Step 2: Convert to fraction form
    15,636.24/21,577.52 = 8,562.24/x
  3. Step 3: Cross multiply
    15,636.24x = 21,577.52 × 8,562.24
  4. Step 4: Simplify right side
    15,636.24x = 184,751,904.84
  5. Step 5: Solve for x
    x = 184,751,904.84/15,636.24
  6. Step 6: Final answer
    x = 11,815.62

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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.