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Finding the Fourth Proportional to 27,807.53, 38,343.64 and 17,719.99

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Solution

The fourth proportional to 27,807.53, 38,343.64 and 17,719.99 is: 24,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.53 : 38,343.64 = 17,719.99 : x
  2. Step 2: Convert to fraction form
    27,807.53/38,343.64 = 17,719.99/x
  3. Step 3: Cross multiply
    27,807.53x = 38,343.64 × 17,719.99
  4. Step 4: Simplify right side
    27,807.53x = 679,448,637.05
  5. Step 5: Solve for x
    x = 679,448,637.05/27,807.53
  6. Step 6: Final answer
    x = 24,433.98

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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.