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Finding the Fourth Proportional to 14,886.78, 20,542.95 and 8,599.02

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Solution

The fourth proportional to 14,886.78, 20,542.95 and 8,599.02 is: 11,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.78 : 20,542.95 = 8,599.02 : x
  2. Step 2: Convert to fraction form
    14,886.78/20,542.95 = 8,599.02/x
  3. Step 3: Cross multiply
    14,886.78x = 20,542.95 × 8,599.02
  4. Step 4: Simplify right side
    14,886.78x = 176,649,237.91
  5. Step 5: Solve for x
    x = 176,649,237.91/14,886.78
  6. Step 6: Final answer
    x = 11,866.18

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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.