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Finding the Fourth Proportional to 12,659.16, 18,973.34 and 8,962.44

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Solution

The fourth proportional to 12,659.16, 18,973.34 and 8,962.44 is: 13,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.16 : 18,973.34 = 8,962.44 : x
  2. Step 2: Convert to fraction form
    12,659.16/18,973.34 = 8,962.44/x
  3. Step 3: Cross multiply
    12,659.16x = 18,973.34 × 8,962.44
  4. Step 4: Simplify right side
    12,659.16x = 170,047,421.35
  5. Step 5: Solve for x
    x = 170,047,421.35/12,659.16
  6. Step 6: Final answer
    x = 13,432.76

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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.