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Finding the Fourth Proportional to 11,646.94, 16,076.83 and 6,931.12

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Solution

The fourth proportional to 11,646.94, 16,076.83 and 6,931.12 is: 9,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,646.94 : 16,076.83 = 6,931.12 : x
  2. Step 2: Convert to fraction form
    11,646.94/16,076.83 = 6,931.12/x
  3. Step 3: Cross multiply
    11,646.94x = 16,076.83 × 6,931.12
  4. Step 4: Simplify right side
    11,646.94x = 111,430,403.29
  5. Step 5: Solve for x
    x = 111,430,403.29/11,646.94
  6. Step 6: Final answer
    x = 9,567.35

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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.