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Finding the Fourth Proportional to 25,692.94, 35,461.98 and 15,619.25

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Solution

The fourth proportional to 25,692.94, 35,461.98 and 15,619.25 is: 21,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,692.94 : 35,461.98 = 15,619.25 : x
  2. Step 2: Convert to fraction form
    25,692.94/35,461.98 = 15,619.25/x
  3. Step 3: Cross multiply
    25,692.94x = 35,461.98 × 15,619.25
  4. Step 4: Simplify right side
    25,692.94x = 553,889,531.12
  5. Step 5: Solve for x
    x = 553,889,531.12/25,692.94
  6. Step 6: Final answer
    x = 21,558.04

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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.