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Finding the Fourth Proportional to 14,995.08, 20,692.69 and 8,280.30

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Solution

The fourth proportional to 14,995.08, 20,692.69 and 8,280.30 is: 11,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.08 : 20,692.69 = 8,280.30 : x
  2. Step 2: Convert to fraction form
    14,995.08/20,692.69 = 8,280.30/x
  3. Step 3: Cross multiply
    14,995.08x = 20,692.69 × 8,280.30
  4. Step 4: Simplify right side
    14,995.08x = 171,341,681.01
  5. Step 5: Solve for x
    x = 171,341,681.01/14,995.08
  6. Step 6: Final answer
    x = 11,426.53

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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.