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Finding the Fourth Proportional to 70,364.16, 105,546.42 and 17,773.20

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Solution

The fourth proportional to 70,364.16, 105,546.42 and 17,773.20 is: 26,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,364.16 : 105,546.42 = 17,773.20 : x
  2. Step 2: Convert to fraction form
    70,364.16/105,546.42 = 17,773.20/x
  3. Step 3: Cross multiply
    70,364.16x = 105,546.42 × 17,773.20
  4. Step 4: Simplify right side
    70,364.16x = 1,875,897,631.94
  5. Step 5: Solve for x
    x = 1,875,897,631.94/70,364.16
  6. Step 6: Final answer
    x = 26,659.85

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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.