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Finding the Fourth Proportional to 30,874.88, 42,583.82 and 26,575.29

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Solution

The fourth proportional to 30,874.88, 42,583.82 and 26,575.29 is: 36,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,874.88 : 42,583.82 = 26,575.29 : x
  2. Step 2: Convert to fraction form
    30,874.88/42,583.82 = 26,575.29/x
  3. Step 3: Cross multiply
    30,874.88x = 42,583.82 × 26,575.29
  4. Step 4: Simplify right side
    30,874.88x = 1,131,677,325.79
  5. Step 5: Solve for x
    x = 1,131,677,325.79/30,874.88
  6. Step 6: Final answer
    x = 36,653.66

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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.