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Finding the Fourth Proportional to 70,614.19, 105,921.18 and 18,023.67

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Solution

The fourth proportional to 70,614.19, 105,921.18 and 18,023.67 is: 27,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.19 : 105,921.18 = 18,023.67 : x
  2. Step 2: Convert to fraction form
    70,614.19/105,921.18 = 18,023.67/x
  3. Step 3: Cross multiply
    70,614.19x = 105,921.18 × 18,023.67
  4. Step 4: Simplify right side
    70,614.19x = 1,909,088,394.33
  5. Step 5: Solve for x
    x = 1,909,088,394.33/70,614.19
  6. Step 6: Final answer
    x = 27,035.48

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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.