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Finding the Fourth Proportional to 19,608.70, 27,059.98 and 10,656.18

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Solution

The fourth proportional to 19,608.70, 27,059.98 and 10,656.18 is: 14,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.70 : 27,059.98 = 10,656.18 : x
  2. Step 2: Convert to fraction form
    19,608.70/27,059.98 = 10,656.18/x
  3. Step 3: Cross multiply
    19,608.70x = 27,059.98 × 10,656.18
  4. Step 4: Simplify right side
    19,608.70x = 288,355,991.04
  5. Step 5: Solve for x
    x = 288,355,991.04/19,608.70
  6. Step 6: Final answer
    x = 14,705.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.