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Finding the Fourth Proportional to 35,305.74, 48,722.04 and 19,389.78

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Solution

The fourth proportional to 35,305.74, 48,722.04 and 19,389.78 is: 26,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,305.74 : 48,722.04 = 19,389.78 : x
  2. Step 2: Convert to fraction form
    35,305.74/48,722.04 = 19,389.78/x
  3. Step 3: Cross multiply
    35,305.74x = 48,722.04 × 19,389.78
  4. Step 4: Simplify right side
    35,305.74x = 944,709,636.75
  5. Step 5: Solve for x
    x = 944,709,636.75/35,305.74
  6. Step 6: Final answer
    x = 26,757.96

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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.