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Finding the Fourth Proportional to 70,433.94, 105,649.36 and 17,126.22

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Solution

The fourth proportional to 70,433.94, 105,649.36 and 17,126.22 is: 25,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,433.94 : 105,649.36 = 17,126.22 : x
  2. Step 2: Convert to fraction form
    70,433.94/105,649.36 = 17,126.22/x
  3. Step 3: Cross multiply
    70,433.94x = 105,649.36 × 17,126.22
  4. Step 4: Simplify right side
    70,433.94x = 1,809,374,182.22
  5. Step 5: Solve for x
    x = 1,809,374,182.22/70,433.94
  6. Step 6: Final answer
    x = 25,688.95

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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.