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Finding the Fourth Proportional to 14,989.52, 20,682.32 and 8,698.52

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Solution

The fourth proportional to 14,989.52, 20,682.32 and 8,698.52 is: 12,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.52 : 20,682.32 = 8,698.52 : x
  2. Step 2: Convert to fraction form
    14,989.52/20,682.32 = 8,698.52/x
  3. Step 3: Cross multiply
    14,989.52x = 20,682.32 × 8,698.52
  4. Step 4: Simplify right side
    14,989.52x = 179,905,574.17
  5. Step 5: Solve for x
    x = 179,905,574.17/14,989.52
  6. Step 6: Final answer
    x = 12,002.09

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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.