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Finding the Fourth Proportional to 21,692.93, 29,927.40 and 14,136.50

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Solution

The fourth proportional to 21,692.93, 29,927.40 and 14,136.50 is: 19,502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.93 : 29,927.40 = 14,136.50 : x
  2. Step 2: Convert to fraction form
    21,692.93/29,927.40 = 14,136.50/x
  3. Step 3: Cross multiply
    21,692.93x = 29,927.40 × 14,136.50
  4. Step 4: Simplify right side
    21,692.93x = 423,068,764.92
  5. Step 5: Solve for x
    x = 423,068,764.92/21,692.93
  6. Step 6: Final answer
    x = 19,502.62

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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.