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Finding the Fourth Proportional to 61,307.84, 91,589.06 and 38,942.12

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Solution

The fourth proportional to 61,307.84, 91,589.06 and 38,942.12 is: 58,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,307.84 : 91,589.06 = 38,942.12 : x
  2. Step 2: Convert to fraction form
    61,307.84/91,589.06 = 38,942.12/x
  3. Step 3: Cross multiply
    61,307.84x = 91,589.06 × 38,942.12
  4. Step 4: Simplify right side
    61,307.84x = 3,566,672,165.21
  5. Step 5: Solve for x
    x = 3,566,672,165.21/61,307.84
  6. Step 6: Final answer
    x = 58,176.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.