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Finding the Fourth Proportional to 62,771.38, 86,603.43 and 35,543.74

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Solution

The fourth proportional to 62,771.38, 86,603.43 and 35,543.74 is: 49,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,771.38 : 86,603.43 = 35,543.74 : x
  2. Step 2: Convert to fraction form
    62,771.38/86,603.43 = 35,543.74/x
  3. Step 3: Cross multiply
    62,771.38x = 86,603.43 × 35,543.74
  4. Step 4: Simplify right side
    62,771.38x = 3,078,209,799.03
  5. Step 5: Solve for x
    x = 3,078,209,799.03/62,771.38
  6. Step 6: Final answer
    x = 49,038.43

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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.