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Finding the Fourth Proportional to 12,465.58, 17,225.31 and 11,858.14

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Solution

The fourth proportional to 12,465.58, 17,225.31 and 11,858.14 is: 16,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.58 : 17,225.31 = 11,858.14 : x
  2. Step 2: Convert to fraction form
    12,465.58/17,225.31 = 11,858.14/x
  3. Step 3: Cross multiply
    12,465.58x = 17,225.31 × 11,858.14
  4. Step 4: Simplify right side
    12,465.58x = 204,260,137.52
  5. Step 5: Solve for x
    x = 204,260,137.52/12,465.58
  6. Step 6: Final answer
    x = 16,385.93

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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.