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Finding the Fourth Proportional to 14,028.72, 19,359.65 and 7,655.33

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Solution

The fourth proportional to 14,028.72, 19,359.65 and 7,655.33 is: 10,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.72 : 19,359.65 = 7,655.33 : x
  2. Step 2: Convert to fraction form
    14,028.72/19,359.65 = 7,655.33/x
  3. Step 3: Cross multiply
    14,028.72x = 19,359.65 × 7,655.33
  4. Step 4: Simplify right side
    14,028.72x = 148,204,374.36
  5. Step 5: Solve for x
    x = 148,204,374.36/14,028.72
  6. Step 6: Final answer
    x = 10,564.35

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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.