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Finding the Fourth Proportional to 3,866.25, 5,800.34 and 1,130.25

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Solution

The fourth proportional to 3,866.25, 5,800.34 and 1,130.25 is: 1,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.25 : 5,800.34 = 1,130.25 : x
  2. Step 2: Convert to fraction form
    3,866.25/5,800.34 = 1,130.25/x
  3. Step 3: Cross multiply
    3,866.25x = 5,800.34 × 1,130.25
  4. Step 4: Simplify right side
    3,866.25x = 6,555,828.63
  5. Step 5: Solve for x
    x = 6,555,828.63/3,866.25
  6. Step 6: Final answer
    x = 1,695.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.