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Finding the Fourth Proportional to 8,492.72, 12,717.14 and 5,868.32

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Solution

The fourth proportional to 8,492.72, 12,717.14 and 5,868.32 is: 8,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.72 : 12,717.14 = 5,868.32 : x
  2. Step 2: Convert to fraction form
    8,492.72/12,717.14 = 5,868.32/x
  3. Step 3: Cross multiply
    8,492.72x = 12,717.14 × 5,868.32
  4. Step 4: Simplify right side
    8,492.72x = 74,628,154.08
  5. Step 5: Solve for x
    x = 74,628,154.08/8,492.72
  6. Step 6: Final answer
    x = 8,787.31

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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.