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Finding the Fourth Proportional to 8,492.10, 12,738.15 and 6,548.10

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Solution

The fourth proportional to 8,492.10, 12,738.15 and 6,548.10 is: 9,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.10 : 12,738.15 = 6,548.10 : x
  2. Step 2: Convert to fraction form
    8,492.10/12,738.15 = 6,548.10/x
  3. Step 3: Cross multiply
    8,492.10x = 12,738.15 × 6,548.10
  4. Step 4: Simplify right side
    8,492.10x = 83,410,680.02
  5. Step 5: Solve for x
    x = 83,410,680.02/8,492.10
  6. Step 6: Final answer
    x = 9,822.15

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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.