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Finding the Fourth Proportional to 15,610.19, 21,541.14 and 8,894.88

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Solution

The fourth proportional to 15,610.19, 21,541.14 and 8,894.88 is: 12,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.19 : 21,541.14 = 8,894.88 : x
  2. Step 2: Convert to fraction form
    15,610.19/21,541.14 = 8,894.88/x
  3. Step 3: Cross multiply
    15,610.19x = 21,541.14 × 8,894.88
  4. Step 4: Simplify right side
    15,610.19x = 191,605,855.36
  5. Step 5: Solve for x
    x = 191,605,855.36/15,610.19
  6. Step 6: Final answer
    x = 12,274.41

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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.