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Finding the Fourth Proportional to 15,999.63, 22,080.08 and 8,927.41

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Solution

The fourth proportional to 15,999.63, 22,080.08 and 8,927.41 is: 12,320.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.63 : 22,080.08 = 8,927.41 : x
  2. Step 2: Convert to fraction form
    15,999.63/22,080.08 = 8,927.41/x
  3. Step 3: Cross multiply
    15,999.63x = 22,080.08 × 8,927.41
  4. Step 4: Simplify right side
    15,999.63x = 197,117,926.99
  5. Step 5: Solve for x
    x = 197,117,926.99/15,999.63
  6. Step 6: Final answer
    x = 12,320.16

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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.