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Finding the Fourth Proportional to 38,215.50, 52,737.39 and 21,448.50

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Solution

The fourth proportional to 38,215.50, 52,737.39 and 21,448.50 is: 29,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,215.50 : 52,737.39 = 21,448.50 : x
  2. Step 2: Convert to fraction form
    38,215.50/52,737.39 = 21,448.50/x
  3. Step 3: Cross multiply
    38,215.50x = 52,737.39 × 21,448.50
  4. Step 4: Simplify right side
    38,215.50x = 1,131,137,909.42
  5. Step 5: Solve for x
    x = 1,131,137,909.42/38,215.50
  6. Step 6: Final answer
    x = 29,598.93

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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.