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Finding the Fourth Proportional to 27,907.66, 38,499.06 and 18,484.12

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Solution

The fourth proportional to 27,907.66, 38,499.06 and 18,484.12 is: 25,499.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.66 : 38,499.06 = 18,484.12 : x
  2. Step 2: Convert to fraction form
    27,907.66/38,499.06 = 18,484.12/x
  3. Step 3: Cross multiply
    27,907.66x = 38,499.06 × 18,484.12
  4. Step 4: Simplify right side
    27,907.66x = 711,621,244.93
  5. Step 5: Solve for x
    x = 711,621,244.93/27,907.66
  6. Step 6: Final answer
    x = 25,499.14

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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.