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Finding the Fourth Proportional to 8,655.53, 11,948.64 and 5,069.99

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Solution

The fourth proportional to 8,655.53, 11,948.64 and 5,069.99 is: 6,998.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.53 : 11,948.64 = 5,069.99 : x
  2. Step 2: Convert to fraction form
    8,655.53/11,948.64 = 5,069.99/x
  3. Step 3: Cross multiply
    8,655.53x = 11,948.64 × 5,069.99
  4. Step 4: Simplify right side
    8,655.53x = 60,579,425.57
  5. Step 5: Solve for x
    x = 60,579,425.57/8,655.53
  6. Step 6: Final answer
    x = 6,998.93

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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.