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Finding the Fourth Proportional to 42,266.55, 63,412.53 and 16,965.99

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Solution

The fourth proportional to 42,266.55, 63,412.53 and 16,965.99 is: 25,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,266.55 : 63,412.53 = 16,965.99 : x
  2. Step 2: Convert to fraction form
    42,266.55/63,412.53 = 16,965.99/x
  3. Step 3: Cross multiply
    42,266.55x = 63,412.53 × 16,965.99
  4. Step 4: Simplify right side
    42,266.55x = 1,075,856,349.85
  5. Step 5: Solve for x
    x = 1,075,856,349.85/42,266.55
  6. Step 6: Final answer
    x = 25,454.08

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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.