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Finding the Fourth Proportional to 60,485.23, 90,737.57 and 21,053.62

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Solution

The fourth proportional to 60,485.23, 90,737.57 and 21,053.62 is: 31,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,485.23 : 90,737.57 = 21,053.62 : x
  2. Step 2: Convert to fraction form
    60,485.23/90,737.57 = 21,053.62/x
  3. Step 3: Cross multiply
    60,485.23x = 90,737.57 × 21,053.62
  4. Step 4: Simplify right side
    60,485.23x = 1,910,354,318.50
  5. Step 5: Solve for x
    x = 1,910,354,318.50/60,485.23
  6. Step 6: Final answer
    x = 31,583.82

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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.