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Finding the Fourth Proportional to 17,806.80, 26,710.20 and 9,512.40

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Solution

The fourth proportional to 17,806.80, 26,710.20 and 9,512.40 is: 14,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,806.80 : 26,710.20 = 9,512.40 : x
  2. Step 2: Convert to fraction form
    17,806.80/26,710.20 = 9,512.40/x
  3. Step 3: Cross multiply
    17,806.80x = 26,710.20 × 9,512.40
  4. Step 4: Simplify right side
    17,806.80x = 254,078,106.48
  5. Step 5: Solve for x
    x = 254,078,106.48/17,806.80
  6. Step 6: Final answer
    x = 14,268.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.