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Finding the Fourth Proportional to 17,765.80, 26,615.90 and 10,373.80

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Solution

The fourth proportional to 17,765.80, 26,615.90 and 10,373.80 is: 15,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.80 : 26,615.90 = 10,373.80 : x
  2. Step 2: Convert to fraction form
    17,765.80/26,615.90 = 10,373.80/x
  3. Step 3: Cross multiply
    17,765.80x = 26,615.90 × 10,373.80
  4. Step 4: Simplify right side
    17,765.80x = 276,108,023.42
  5. Step 5: Solve for x
    x = 276,108,023.42/17,765.80
  6. Step 6: Final answer
    x = 15,541.55

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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.