Home / 7,709.02-11,561.55-3,760.36

Finding the Fourth Proportional to 7,709.02, 11,561.55 and 3,760.36

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Solution

The fourth proportional to 7,709.02, 11,561.55 and 3,760.36 is: 5,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.02 : 11,561.55 = 3,760.36 : x
  2. Step 2: Convert to fraction form
    7,709.02/11,561.55 = 3,760.36/x
  3. Step 3: Cross multiply
    7,709.02x = 11,561.55 × 3,760.36
  4. Step 4: Simplify right side
    7,709.02x = 43,475,590.16
  5. Step 5: Solve for x
    x = 43,475,590.16/7,709.02
  6. Step 6: Final answer
    x = 5,639.57

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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.