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Finding the Fourth Proportional to 70,402.77, 105,527.61 and 25,992.09

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Solution

The fourth proportional to 70,402.77, 105,527.61 and 25,992.09 is: 38,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,402.77 : 105,527.61 = 25,992.09 : x
  2. Step 2: Convert to fraction form
    70,402.77/105,527.61 = 25,992.09/x
  3. Step 3: Cross multiply
    70,402.77x = 105,527.61 × 25,992.09
  4. Step 4: Simplify right side
    70,402.77x = 2,742,883,136.60
  5. Step 5: Solve for x
    x = 2,742,883,136.60/70,402.77
  6. Step 6: Final answer
    x = 38,959.88

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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.