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Finding the Fourth Proportional to 35,203.65, 48,568.86 and 20,085.39

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Solution

The fourth proportional to 35,203.65, 48,568.86 and 20,085.39 is: 27,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,203.65 : 48,568.86 = 20,085.39 : x
  2. Step 2: Convert to fraction form
    35,203.65/48,568.86 = 20,085.39/x
  3. Step 3: Cross multiply
    35,203.65x = 48,568.86 × 20,085.39
  4. Step 4: Simplify right side
    35,203.65x = 975,524,494.96
  5. Step 5: Solve for x
    x = 975,524,494.96/35,203.65
  6. Step 6: Final answer
    x = 27,710.89

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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.