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Finding the Fourth Proportional to 15,962.40, 23,900.40 and 12,506.40

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Solution

The fourth proportional to 15,962.40, 23,900.40 and 12,506.40 is: 18,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,962.40 : 23,900.40 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    15,962.40/23,900.40 = 12,506.40/x
  3. Step 3: Cross multiply
    15,962.40x = 23,900.40 × 12,506.40
  4. Step 4: Simplify right side
    15,962.40x = 298,907,962.56
  5. Step 5: Solve for x
    x = 298,907,962.56/15,962.40
  6. Step 6: Final answer
    x = 18,725.75

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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.