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Finding the Fourth Proportional to 15,632.66, 21,573.10 and 8,559.52

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Solution

The fourth proportional to 15,632.66, 21,573.10 and 8,559.52 is: 11,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.66 : 21,573.10 = 8,559.52 : x
  2. Step 2: Convert to fraction form
    15,632.66/21,573.10 = 8,559.52/x
  3. Step 3: Cross multiply
    15,632.66x = 21,573.10 × 8,559.52
  4. Step 4: Simplify right side
    15,632.66x = 184,655,380.91
  5. Step 5: Solve for x
    x = 184,655,380.91/15,632.66
  6. Step 6: Final answer
    x = 11,812.15

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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.