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Finding the Fourth Proportional to 14,959.53, 20,641.92 and 8,908.02

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Solution

The fourth proportional to 14,959.53, 20,641.92 and 8,908.02 is: 12,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.53 : 20,641.92 = 8,908.02 : x
  2. Step 2: Convert to fraction form
    14,959.53/20,641.92 = 8,908.02/x
  3. Step 3: Cross multiply
    14,959.53x = 20,641.92 × 8,908.02
  4. Step 4: Simplify right side
    14,959.53x = 183,878,636.20
  5. Step 5: Solve for x
    x = 183,878,636.20/14,959.53
  6. Step 6: Final answer
    x = 12,291.74

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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.