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Finding the Fourth Proportional to 13,322.01, 19,984.11 and 7,775.94

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Solution

The fourth proportional to 13,322.01, 19,984.11 and 7,775.94 is: 11,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.01 : 19,984.11 = 7,775.94 : x
  2. Step 2: Convert to fraction form
    13,322.01/19,984.11 = 7,775.94/x
  3. Step 3: Cross multiply
    13,322.01x = 19,984.11 × 7,775.94
  4. Step 4: Simplify right side
    13,322.01x = 155,395,240.31
  5. Step 5: Solve for x
    x = 155,395,240.31/13,322.01
  6. Step 6: Final answer
    x = 11,664.55

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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.