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Finding the Fourth Proportional to 18,592.26, 27,888.45 and 13,070.31

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Solution

The fourth proportional to 18,592.26, 27,888.45 and 13,070.31 is: 19,605.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.26 : 27,888.45 = 13,070.31 : x
  2. Step 2: Convert to fraction form
    18,592.26/27,888.45 = 13,070.31/x
  3. Step 3: Cross multiply
    18,592.26x = 27,888.45 × 13,070.31
  4. Step 4: Simplify right side
    18,592.26x = 364,510,686.92
  5. Step 5: Solve for x
    x = 364,510,686.92/18,592.26
  6. Step 6: Final answer
    x = 19,605.51

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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.