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Finding the Fourth Proportional to 4,692.42, 7,036.02 and 1,921.03

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Solution

The fourth proportional to 4,692.42, 7,036.02 and 1,921.03 is: 2,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.42 : 7,036.02 = 1,921.03 : x
  2. Step 2: Convert to fraction form
    4,692.42/7,036.02 = 1,921.03/x
  3. Step 3: Cross multiply
    4,692.42x = 7,036.02 × 1,921.03
  4. Step 4: Simplify right side
    4,692.42x = 13,516,405.50
  5. Step 5: Solve for x
    x = 13,516,405.50/4,692.42
  6. Step 6: Final answer
    x = 2,880.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.