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Finding the Fourth Proportional to 35,081.81, 48,415.13 and 19,975.79

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Solution

The fourth proportional to 35,081.81, 48,415.13 and 19,975.79 is: 27,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,081.81 : 48,415.13 = 19,975.79 : x
  2. Step 2: Convert to fraction form
    35,081.81/48,415.13 = 19,975.79/x
  3. Step 3: Cross multiply
    35,081.81x = 48,415.13 × 19,975.79
  4. Step 4: Simplify right side
    35,081.81x = 967,130,127.75
  5. Step 5: Solve for x
    x = 967,130,127.75/35,081.81
  6. Step 6: Final answer
    x = 27,567.86

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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.