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Finding the Fourth Proportional to 27,172.58, 40,756.14 and 7,453.12

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Solution

The fourth proportional to 27,172.58, 40,756.14 and 7,453.12 is: 11,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,172.58 : 40,756.14 = 7,453.12 : x
  2. Step 2: Convert to fraction form
    27,172.58/40,756.14 = 7,453.12/x
  3. Step 3: Cross multiply
    27,172.58x = 40,756.14 × 7,453.12
  4. Step 4: Simplify right side
    27,172.58x = 303,760,402.16
  5. Step 5: Solve for x
    x = 303,760,402.16/27,172.58
  6. Step 6: Final answer
    x = 11,178.93

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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.