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Finding the Fourth Proportional to 70,205.06, 105,401.01 and 36,948.48

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Solution

The fourth proportional to 70,205.06, 105,401.01 and 36,948.48 is: 55,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,205.06 : 105,401.01 = 36,948.48 : x
  2. Step 2: Convert to fraction form
    70,205.06/105,401.01 = 36,948.48/x
  3. Step 3: Cross multiply
    70,205.06x = 105,401.01 × 36,948.48
  4. Step 4: Simplify right side
    70,205.06x = 3,894,407,109.96
  5. Step 5: Solve for x
    x = 3,894,407,109.96/70,205.06
  6. Step 6: Final answer
    x = 55,471.89

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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.