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Finding the Fourth Proportional to 8,831.93, 12,188.03 and 5,055.08

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Solution

The fourth proportional to 8,831.93, 12,188.03 and 5,055.08 is: 6,975.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.93 : 12,188.03 = 5,055.08 : x
  2. Step 2: Convert to fraction form
    8,831.93/12,188.03 = 5,055.08/x
  3. Step 3: Cross multiply
    8,831.93x = 12,188.03 × 5,055.08
  4. Step 4: Simplify right side
    8,831.93x = 61,611,466.69
  5. Step 5: Solve for x
    x = 61,611,466.69/8,831.93
  6. Step 6: Final answer
    x = 6,975.99

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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.