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Finding the Fourth Proportional to 14,692.08, 20,275.20 and 8,319

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Solution

The fourth proportional to 14,692.08, 20,275.20 and 8,319 is: 11,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.08 : 20,275.20 = 8,319 : x
  2. Step 2: Convert to fraction form
    14,692.08/20,275.20 = 8,319/x
  3. Step 3: Cross multiply
    14,692.08x = 20,275.20 × 8,319
  4. Step 4: Simplify right side
    14,692.08x = 168,669,388.80
  5. Step 5: Solve for x
    x = 168,669,388.80/14,692.08
  6. Step 6: Final answer
    x = 11,480.29

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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.