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Finding the Fourth Proportional to 35,859.75, 49,486.46 and 20,955.75

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Solution

The fourth proportional to 35,859.75, 49,486.46 and 20,955.75 is: 28,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,859.75 : 49,486.46 = 20,955.75 : x
  2. Step 2: Convert to fraction form
    35,859.75/49,486.46 = 20,955.75/x
  3. Step 3: Cross multiply
    35,859.75x = 49,486.46 × 20,955.75
  4. Step 4: Simplify right side
    35,859.75x = 1,037,025,779.37
  5. Step 5: Solve for x
    x = 1,037,025,779.37/35,859.75
  6. Step 6: Final answer
    x = 28,918.94

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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.