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Finding the Fourth Proportional to 26,199.70, 39,274.85 and 13,039.63

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Solution

The fourth proportional to 26,199.70, 39,274.85 and 13,039.63 is: 19,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,199.70 : 39,274.85 = 13,039.63 : x
  2. Step 2: Convert to fraction form
    26,199.70/39,274.85 = 13,039.63/x
  3. Step 3: Cross multiply
    26,199.70x = 39,274.85 × 13,039.63
  4. Step 4: Simplify right side
    26,199.70x = 512,129,447.11
  5. Step 5: Solve for x
    x = 512,129,447.11/26,199.70
  6. Step 6: Final answer
    x = 19,547.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.