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Finding the Fourth Proportional to 70,044.68, 105,004.60 and 25,661.05

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Solution

The fourth proportional to 70,044.68, 105,004.60 and 25,661.05 is: 38,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,044.68 : 105,004.60 = 25,661.05 : x
  2. Step 2: Convert to fraction form
    70,044.68/105,004.60 = 25,661.05/x
  3. Step 3: Cross multiply
    70,044.68x = 105,004.60 × 25,661.05
  4. Step 4: Simplify right side
    70,044.68x = 2,694,528,290.83
  5. Step 5: Solve for x
    x = 2,694,528,290.83/70,044.68
  6. Step 6: Final answer
    x = 38,468.71

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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.