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Finding the Fourth Proportional to 8,831.64, 12,175.02 and 6,313.08

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Solution

The fourth proportional to 8,831.64, 12,175.02 and 6,313.08 is: 8,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.64 : 12,175.02 = 6,313.08 : x
  2. Step 2: Convert to fraction form
    8,831.64/12,175.02 = 6,313.08/x
  3. Step 3: Cross multiply
    8,831.64x = 12,175.02 × 6,313.08
  4. Step 4: Simplify right side
    8,831.64x = 76,861,875.26
  5. Step 5: Solve for x
    x = 76,861,875.26/8,831.64
  6. Step 6: Final answer
    x = 8,703.01

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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.