Home / 6,875.21-9,485.21-4,042.73

Finding the Fourth Proportional to 6,875.21, 9,485.21 and 4,042.73

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Solution

The fourth proportional to 6,875.21, 9,485.21 and 4,042.73 is: 5,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.21 : 9,485.21 = 4,042.73 : x
  2. Step 2: Convert to fraction form
    6,875.21/9,485.21 = 4,042.73/x
  3. Step 3: Cross multiply
    6,875.21x = 9,485.21 × 4,042.73
  4. Step 4: Simplify right side
    6,875.21x = 38,346,105.70
  5. Step 5: Solve for x
    x = 38,346,105.70/6,875.21
  6. Step 6: Final answer
    x = 5,577.45

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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.