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Finding the Fourth Proportional to 8,572.70, 11,831.42 and 4,796.08

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Solution

The fourth proportional to 8,572.70, 11,831.42 and 4,796.08 is: 6,619.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.70 : 11,831.42 = 4,796.08 : x
  2. Step 2: Convert to fraction form
    8,572.70/11,831.42 = 4,796.08/x
  3. Step 3: Cross multiply
    8,572.70x = 11,831.42 × 4,796.08
  4. Step 4: Simplify right side
    8,572.70x = 56,744,353.70
  5. Step 5: Solve for x
    x = 56,744,353.70/8,572.70
  6. Step 6: Final answer
    x = 6,619.19

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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.