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Finding the Fourth Proportional to 27,476.99, 37,900.20 and 21,802.74

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Solution

The fourth proportional to 27,476.99, 37,900.20 and 21,802.74 is: 30,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,476.99 : 37,900.20 = 21,802.74 : x
  2. Step 2: Convert to fraction form
    27,476.99/37,900.20 = 21,802.74/x
  3. Step 3: Cross multiply
    27,476.99x = 37,900.20 × 21,802.74
  4. Step 4: Simplify right side
    27,476.99x = 826,328,146.18
  5. Step 5: Solve for x
    x = 826,328,146.18/27,476.99
  6. Step 6: Final answer
    x = 30,073.46

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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.