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Finding the Fourth Proportional to 14,640.52, 20,203.98 and 8,356.52

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Solution

The fourth proportional to 14,640.52, 20,203.98 and 8,356.52 is: 11,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.52 : 20,203.98 = 8,356.52 : x
  2. Step 2: Convert to fraction form
    14,640.52/20,203.98 = 8,356.52/x
  3. Step 3: Cross multiply
    14,640.52x = 20,203.98 × 8,356.52
  4. Step 4: Simplify right side
    14,640.52x = 168,834,962.95
  5. Step 5: Solve for x
    x = 168,834,962.95/14,640.52
  6. Step 6: Final answer
    x = 11,532.03

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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.