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Finding the Fourth Proportional to 15,659.21, 23,490.97 and 8,264.18

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Solution

The fourth proportional to 15,659.21, 23,490.97 and 8,264.18 is: 12,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.21 : 23,490.97 = 8,264.18 : x
  2. Step 2: Convert to fraction form
    15,659.21/23,490.97 = 8,264.18/x
  3. Step 3: Cross multiply
    15,659.21x = 23,490.97 × 8,264.18
  4. Step 4: Simplify right side
    15,659.21x = 194,133,466.34
  5. Step 5: Solve for x
    x = 194,133,466.34/15,659.21
  6. Step 6: Final answer
    x = 12,397.40

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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.