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Finding the Fourth Proportional to 5,155.16, 7,726.26 and 3,697.16

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Solution

The fourth proportional to 5,155.16, 7,726.26 and 3,697.16 is: 5,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.16 : 7,726.26 = 3,697.16 : x
  2. Step 2: Convert to fraction form
    5,155.16/7,726.26 = 3,697.16/x
  3. Step 3: Cross multiply
    5,155.16x = 7,726.26 × 3,697.16
  4. Step 4: Simplify right side
    5,155.16x = 28,565,219.42
  5. Step 5: Solve for x
    x = 28,565,219.42/5,155.16
  6. Step 6: Final answer
    x = 5,541.09

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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.