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Finding the Fourth Proportional to 70,080.45, 105,134.52 and 25,707.59

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Solution

The fourth proportional to 70,080.45, 105,134.52 and 25,707.59 is: 38,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080.45 : 105,134.52 = 25,707.59 : x
  2. Step 2: Convert to fraction form
    70,080.45/105,134.52 = 25,707.59/x
  3. Step 3: Cross multiply
    70,080.45x = 105,134.52 × 25,707.59
  4. Step 4: Simplify right side
    70,080.45x = 2,702,754,609.33
  5. Step 5: Solve for x
    x = 2,702,754,609.33/70,080.45
  6. Step 6: Final answer
    x = 38,566.46

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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.