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Finding the Fourth Proportional to 60,722.79, 91,084.41 and 18,602.70

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Solution

The fourth proportional to 60,722.79, 91,084.41 and 18,602.70 is: 27,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,722.79 : 91,084.41 = 18,602.70 : x
  2. Step 2: Convert to fraction form
    60,722.79/91,084.41 = 18,602.70/x
  3. Step 3: Cross multiply
    60,722.79x = 91,084.41 × 18,602.70
  4. Step 4: Simplify right side
    60,722.79x = 1,694,415,953.91
  5. Step 5: Solve for x
    x = 1,694,415,953.91/60,722.79
  6. Step 6: Final answer
    x = 27,904.12

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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.