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Finding the Fourth Proportional to 12,362.47, 17,069.99 and 11,417.89

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Solution

The fourth proportional to 12,362.47, 17,069.99 and 11,417.89 is: 15,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.47 : 17,069.99 = 11,417.89 : x
  2. Step 2: Convert to fraction form
    12,362.47/17,069.99 = 11,417.89/x
  3. Step 3: Cross multiply
    12,362.47x = 17,069.99 × 11,417.89
  4. Step 4: Simplify right side
    12,362.47x = 194,903,216.58
  5. Step 5: Solve for x
    x = 194,903,216.58/12,362.47
  6. Step 6: Final answer
    x = 15,765.71

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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.