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Finding the Fourth Proportional to 26,685.99, 36,827.06 and 15,507.99

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Solution

The fourth proportional to 26,685.99, 36,827.06 and 15,507.99 is: 21,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,685.99 : 36,827.06 = 15,507.99 : x
  2. Step 2: Convert to fraction form
    26,685.99/36,827.06 = 15,507.99/x
  3. Step 3: Cross multiply
    26,685.99x = 36,827.06 × 15,507.99
  4. Step 4: Simplify right side
    26,685.99x = 571,113,600.67
  5. Step 5: Solve for x
    x = 571,113,600.67/26,685.99
  6. Step 6: Final answer
    x = 21,401.25

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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.