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Finding the Fourth Proportional to 5,707.62, 7,875.60 and 3,468.30

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Solution

The fourth proportional to 5,707.62, 7,875.60 and 3,468.30 is: 4,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.62 : 7,875.60 = 3,468.30 : x
  2. Step 2: Convert to fraction form
    5,707.62/7,875.60 = 3,468.30/x
  3. Step 3: Cross multiply
    5,707.62x = 7,875.60 × 3,468.30
  4. Step 4: Simplify right side
    5,707.62x = 27,314,943.48
  5. Step 5: Solve for x
    x = 27,314,943.48/5,707.62
  6. Step 6: Final answer
    x = 4,785.70

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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.