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Finding the Fourth Proportional to 8,814.53, 12,150.22 and 6,681.53

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Solution

The fourth proportional to 8,814.53, 12,150.22 and 6,681.53 is: 9,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.53 : 12,150.22 = 6,681.53 : x
  2. Step 2: Convert to fraction form
    8,814.53/12,150.22 = 6,681.53/x
  3. Step 3: Cross multiply
    8,814.53x = 12,150.22 × 6,681.53
  4. Step 4: Simplify right side
    8,814.53x = 81,181,981.98
  5. Step 5: Solve for x
    x = 81,181,981.98/8,814.53
  6. Step 6: Final answer
    x = 9,210.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.