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Finding the Fourth Proportional to 18,340, 25,309.74 and 9,957.04

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Solution

The fourth proportional to 18,340, 25,309.74 and 9,957.04 is: 13,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340 : 25,309.74 = 9,957.04 : x
  2. Step 2: Convert to fraction form
    18,340/25,309.74 = 9,957.04/x
  3. Step 3: Cross multiply
    18,340x = 25,309.74 × 9,957.04
  4. Step 4: Simplify right side
    18,340x = 252,010,093.57
  5. Step 5: Solve for x
    x = 252,010,093.57/18,340
  6. Step 6: Final answer
    x = 13,741.01

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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.