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Finding the Fourth Proportional to 25,652.42, 35,415.05 and 19,554.78

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Solution

The fourth proportional to 25,652.42, 35,415.05 and 19,554.78 is: 26,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,652.42 : 35,415.05 = 19,554.78 : x
  2. Step 2: Convert to fraction form
    25,652.42/35,415.05 = 19,554.78/x
  3. Step 3: Cross multiply
    25,652.42x = 35,415.05 × 19,554.78
  4. Step 4: Simplify right side
    25,652.42x = 692,533,511.44
  5. Step 5: Solve for x
    x = 692,533,511.44/25,652.42
  6. Step 6: Final answer
    x = 26,996.81

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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.