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Finding the Fourth Proportional to 18,592.56, 27,888.88 and 13,070.58

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Solution

The fourth proportional to 18,592.56, 27,888.88 and 13,070.58 is: 19,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.56 : 27,888.88 = 13,070.58 : x
  2. Step 2: Convert to fraction form
    18,592.56/27,888.88 = 13,070.58/x
  3. Step 3: Cross multiply
    18,592.56x = 27,888.88 × 13,070.58
  4. Step 4: Simplify right side
    18,592.56x = 364,523,837.15
  5. Step 5: Solve for x
    x = 364,523,837.15/18,592.56
  6. Step 6: Final answer
    x = 19,605.90

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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.