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Finding the Fourth Proportional to 27,402.67, 37,811.90 and 15,301.67

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Solution

The fourth proportional to 27,402.67, 37,811.90 and 15,301.67 is: 21,114.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,402.67 : 37,811.90 = 15,301.67 : x
  2. Step 2: Convert to fraction form
    27,402.67/37,811.90 = 15,301.67/x
  3. Step 3: Cross multiply
    27,402.67x = 37,811.90 × 15,301.67
  4. Step 4: Simplify right side
    27,402.67x = 578,585,139.36
  5. Step 5: Solve for x
    x = 578,585,139.36/27,402.67
  6. Step 6: Final answer
    x = 21,114.19

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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.