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Finding the Fourth Proportional to 15,692.16, 21,634.02 and 13,444.32

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Solution

The fourth proportional to 15,692.16, 21,634.02 and 13,444.32 is: 18,535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692.16 : 21,634.02 = 13,444.32 : x
  2. Step 2: Convert to fraction form
    15,692.16/21,634.02 = 13,444.32/x
  3. Step 3: Cross multiply
    15,692.16x = 21,634.02 × 13,444.32
  4. Step 4: Simplify right side
    15,692.16x = 290,854,687.77
  5. Step 5: Solve for x
    x = 290,854,687.77/15,692.16
  6. Step 6: Final answer
    x = 18,535.03

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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.