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Finding the Fourth Proportional to 12,703.13, 19,068.82 and 7,444.31

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Solution

The fourth proportional to 12,703.13, 19,068.82 and 7,444.31 is: 11,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.13 : 19,068.82 = 7,444.31 : x
  2. Step 2: Convert to fraction form
    12,703.13/19,068.82 = 7,444.31/x
  3. Step 3: Cross multiply
    12,703.13x = 19,068.82 × 7,444.31
  4. Step 4: Simplify right side
    12,703.13x = 141,954,093.46
  5. Step 5: Solve for x
    x = 141,954,093.46/12,703.13
  6. Step 6: Final answer
    x = 11,174.73

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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.