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Finding the Fourth Proportional to 12,176.55, 16,797.87 and 7,926.06

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Solution

The fourth proportional to 12,176.55, 16,797.87 and 7,926.06 is: 10,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.55 : 16,797.87 = 7,926.06 : x
  2. Step 2: Convert to fraction form
    12,176.55/16,797.87 = 7,926.06/x
  3. Step 3: Cross multiply
    12,176.55x = 16,797.87 × 7,926.06
  4. Step 4: Simplify right side
    12,176.55x = 133,140,925.49
  5. Step 5: Solve for x
    x = 133,140,925.49/12,176.55
  6. Step 6: Final answer
    x = 10,934.21

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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.