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Finding the Fourth Proportional to 11,646.48, 16,053.45 and 7,868.43

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Solution

The fourth proportional to 11,646.48, 16,053.45 and 7,868.43 is: 10,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,646.48 : 16,053.45 = 7,868.43 : x
  2. Step 2: Convert to fraction form
    11,646.48/16,053.45 = 7,868.43/x
  3. Step 3: Cross multiply
    11,646.48x = 16,053.45 × 7,868.43
  4. Step 4: Simplify right side
    11,646.48x = 126,315,447.58
  5. Step 5: Solve for x
    x = 126,315,447.58/11,646.48
  6. Step 6: Final answer
    x = 10,845.80

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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.