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Finding the Fourth Proportional to 23,690.65, 32,692.88 and 13,080.05

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Solution

The fourth proportional to 23,690.65, 32,692.88 and 13,080.05 is: 18,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,690.65 : 32,692.88 = 13,080.05 : x
  2. Step 2: Convert to fraction form
    23,690.65/32,692.88 = 13,080.05/x
  3. Step 3: Cross multiply
    23,690.65x = 32,692.88 × 13,080.05
  4. Step 4: Simplify right side
    23,690.65x = 427,624,505.04
  5. Step 5: Solve for x
    x = 427,624,505.04/23,690.65
  6. Step 6: Final answer
    x = 18,050.35

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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.