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Finding the Fourth Proportional to 70,211.17, 105,326.70 and 22,811.09

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Solution

The fourth proportional to 70,211.17, 105,326.70 and 22,811.09 is: 34,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.17 : 105,326.70 = 22,811.09 : x
  2. Step 2: Convert to fraction form
    70,211.17/105,326.70 = 22,811.09/x
  3. Step 3: Cross multiply
    70,211.17x = 105,326.70 × 22,811.09
  4. Step 4: Simplify right side
    70,211.17x = 2,402,617,096.42
  5. Step 5: Solve for x
    x = 2,402,617,096.42/70,211.17
  6. Step 6: Final answer
    x = 34,219.87

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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.