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Finding the Fourth Proportional to 70,335.95, 105,504.10 and 17,745.43

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Solution

The fourth proportional to 70,335.95, 105,504.10 and 17,745.43 is: 26,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,335.95 : 105,504.10 = 17,745.43 : x
  2. Step 2: Convert to fraction form
    70,335.95/105,504.10 = 17,745.43/x
  3. Step 3: Cross multiply
    70,335.95x = 105,504.10 × 17,745.43
  4. Step 4: Simplify right side
    70,335.95x = 1,872,215,610.78
  5. Step 5: Solve for x
    x = 1,872,215,610.78/70,335.95
  6. Step 6: Final answer
    x = 26,618.19

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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.