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Finding the Fourth Proportional to 8,492.69, 12,722.45 and 5,562.11

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Solution

The fourth proportional to 8,492.69, 12,722.45 and 5,562.11 is: 8,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.69 : 12,722.45 = 5,562.11 : x
  2. Step 2: Convert to fraction form
    8,492.69/12,722.45 = 5,562.11/x
  3. Step 3: Cross multiply
    8,492.69x = 12,722.45 × 5,562.11
  4. Step 4: Simplify right side
    8,492.69x = 70,763,574.95
  5. Step 5: Solve for x
    x = 70,763,574.95/8,492.69
  6. Step 6: Final answer
    x = 8,332.30

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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.