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Finding the Fourth Proportional to 15,960.80, 23,941.20 and 8,962.40

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Solution

The fourth proportional to 15,960.80, 23,941.20 and 8,962.40 is: 13,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.80 : 23,941.20 = 8,962.40 : x
  2. Step 2: Convert to fraction form
    15,960.80/23,941.20 = 8,962.40/x
  3. Step 3: Cross multiply
    15,960.80x = 23,941.20 × 8,962.40
  4. Step 4: Simplify right side
    15,960.80x = 214,570,610.88
  5. Step 5: Solve for x
    x = 214,570,610.88/15,960.80
  6. Step 6: Final answer
    x = 13,443.60

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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.