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Finding the Fourth Proportional to 70,087.88, 105,129.09 and 23,340.76

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Solution

The fourth proportional to 70,087.88, 105,129.09 and 23,340.76 is: 35,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,087.88 : 105,129.09 = 23,340.76 : x
  2. Step 2: Convert to fraction form
    70,087.88/105,129.09 = 23,340.76/x
  3. Step 3: Cross multiply
    70,087.88x = 105,129.09 × 23,340.76
  4. Step 4: Simplify right side
    70,087.88x = 2,453,792,595.89
  5. Step 5: Solve for x
    x = 2,453,792,595.89/70,087.88
  6. Step 6: Final answer
    x = 35,010.23

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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.