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Finding the Fourth Proportional to 18,648.51, 25,734.83 and 10,265.01

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Solution

The fourth proportional to 18,648.51, 25,734.83 and 10,265.01 is: 14,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.51 : 25,734.83 = 10,265.01 : x
  2. Step 2: Convert to fraction form
    18,648.51/25,734.83 = 10,265.01/x
  3. Step 3: Cross multiply
    18,648.51x = 25,734.83 × 10,265.01
  4. Step 4: Simplify right side
    18,648.51x = 264,168,235.97
  5. Step 5: Solve for x
    x = 264,168,235.97/18,648.51
  6. Step 6: Final answer
    x = 14,165.65

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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.