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Finding the Fourth Proportional to 18,757.98, 25,886.18 and 10,259.93

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Solution

The fourth proportional to 18,757.98, 25,886.18 and 10,259.93 is: 14,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.98 : 25,886.18 = 10,259.93 : x
  2. Step 2: Convert to fraction form
    18,757.98/25,886.18 = 10,259.93/x
  3. Step 3: Cross multiply
    18,757.98x = 25,886.18 × 10,259.93
  4. Step 4: Simplify right side
    18,757.98x = 265,590,485.13
  5. Step 5: Solve for x
    x = 265,590,485.13/18,757.98
  6. Step 6: Final answer
    x = 14,158.80

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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.