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Finding the Fourth Proportional to 12,348.83, 17,039.80 and 7,043.33

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Solution

The fourth proportional to 12,348.83, 17,039.80 and 7,043.33 is: 9,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.83 : 17,039.80 = 7,043.33 : x
  2. Step 2: Convert to fraction form
    12,348.83/17,039.80 = 7,043.33/x
  3. Step 3: Cross multiply
    12,348.83x = 17,039.80 × 7,043.33
  4. Step 4: Simplify right side
    12,348.83x = 120,016,985.94
  5. Step 5: Solve for x
    x = 120,016,985.94/12,348.83
  6. Step 6: Final answer
    x = 9,718.89

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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.