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Finding the Fourth Proportional to 14,461.77, 21,692.55 and 7,443.75

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Solution

The fourth proportional to 14,461.77, 21,692.55 and 7,443.75 is: 11,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,461.77 : 21,692.55 = 7,443.75 : x
  2. Step 2: Convert to fraction form
    14,461.77/21,692.55 = 7,443.75/x
  3. Step 3: Cross multiply
    14,461.77x = 21,692.55 × 7,443.75
  4. Step 4: Simplify right side
    14,461.77x = 161,473,919.06
  5. Step 5: Solve for x
    x = 161,473,919.06/14,461.77
  6. Step 6: Final answer
    x = 11,165.57

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1.5x scale

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.