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Finding the Fourth Proportional to 10,859.68, 14,986.02 and 5,891.68

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Solution

The fourth proportional to 10,859.68, 14,986.02 and 5,891.68 is: 8,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.68 : 14,986.02 = 5,891.68 : x
  2. Step 2: Convert to fraction form
    10,859.68/14,986.02 = 5,891.68/x
  3. Step 3: Cross multiply
    10,859.68x = 14,986.02 × 5,891.68
  4. Step 4: Simplify right side
    10,859.68x = 88,292,834.31
  5. Step 5: Solve for x
    x = 88,292,834.31/10,859.68
  6. Step 6: Final answer
    x = 8,130.33

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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.