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Finding the Fourth Proportional to 8,368.12, 11,548.14 and 4,831.64

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Solution

The fourth proportional to 8,368.12, 11,548.14 and 4,831.64 is: 6,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.12 : 11,548.14 = 4,831.64 : x
  2. Step 2: Convert to fraction form
    8,368.12/11,548.14 = 4,831.64/x
  3. Step 3: Cross multiply
    8,368.12x = 11,548.14 × 4,831.64
  4. Step 4: Simplify right side
    8,368.12x = 55,796,455.15
  5. Step 5: Solve for x
    x = 55,796,455.15/8,368.12
  6. Step 6: Final answer
    x = 6,667.74

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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.