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Finding the Fourth Proportional to 28,369.80, 42,554.08 and 7,593.30

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Solution

The fourth proportional to 28,369.80, 42,554.08 and 7,593.30 is: 11,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.80 : 42,554.08 = 7,593.30 : x
  2. Step 2: Convert to fraction form
    28,369.80/42,554.08 = 7,593.30/x
  3. Step 3: Cross multiply
    28,369.80x = 42,554.08 × 7,593.30
  4. Step 4: Simplify right side
    28,369.80x = 323,125,895.66
  5. Step 5: Solve for x
    x = 323,125,895.66/28,369.80
  6. Step 6: Final answer
    x = 11,389.78

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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.