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Finding the Fourth Proportional to 61,142.07, 91,710.95 and 16,768.11

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Solution

The fourth proportional to 61,142.07, 91,710.95 and 16,768.11 is: 25,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,142.07 : 91,710.95 = 16,768.11 : x
  2. Step 2: Convert to fraction form
    61,142.07/91,710.95 = 16,768.11/x
  3. Step 3: Cross multiply
    61,142.07x = 91,710.95 × 16,768.11
  4. Step 4: Simplify right side
    61,142.07x = 1,537,819,213.96
  5. Step 5: Solve for x
    x = 1,537,819,213.96/61,142.07
  6. Step 6: Final answer
    x = 25,151.57

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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.