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Finding the Fourth Proportional to 18,758.76, 25,893.60 and 10,804.14

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Solution

The fourth proportional to 18,758.76, 25,893.60 and 10,804.14 is: 14,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.76 : 25,893.60 = 10,804.14 : x
  2. Step 2: Convert to fraction form
    18,758.76/25,893.60 = 10,804.14/x
  3. Step 3: Cross multiply
    18,758.76x = 25,893.60 × 10,804.14
  4. Step 4: Simplify right side
    18,758.76x = 279,758,079.50
  5. Step 5: Solve for x
    x = 279,758,079.50/18,758.76
  6. Step 6: Final answer
    x = 14,913.46

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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.