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Finding the Fourth Proportional to 15,599.72, 23,409.08 and 8,209.44

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Solution

The fourth proportional to 15,599.72, 23,409.08 and 8,209.44 is: 12,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.72 : 23,409.08 = 8,209.44 : x
  2. Step 2: Convert to fraction form
    15,599.72/23,409.08 = 8,209.44/x
  3. Step 3: Cross multiply
    15,599.72x = 23,409.08 × 8,209.44
  4. Step 4: Simplify right side
    15,599.72x = 192,175,437.72
  5. Step 5: Solve for x
    x = 192,175,437.72/15,599.72
  6. Step 6: Final answer
    x = 12,319.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.