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Finding the Fourth Proportional to 70,406.65, 105,608.13 and 23,659.51

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Solution

The fourth proportional to 70,406.65, 105,608.13 and 23,659.51 is: 35,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,406.65 : 105,608.13 = 23,659.51 : x
  2. Step 2: Convert to fraction form
    70,406.65/105,608.13 = 23,659.51/x
  3. Step 3: Cross multiply
    70,406.65x = 105,608.13 × 23,659.51
  4. Step 4: Simplify right side
    70,406.65x = 2,498,636,607.82
  5. Step 5: Solve for x
    x = 2,498,636,607.82/70,406.65
  6. Step 6: Final answer
    x = 35,488.65

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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.