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Finding the Fourth Proportional to 62,791.12, 86,626.68 and 35,928.40

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Solution

The fourth proportional to 62,791.12, 86,626.68 and 35,928.40 is: 49,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,791.12 : 86,626.68 = 35,928.40 : x
  2. Step 2: Convert to fraction form
    62,791.12/86,626.68 = 35,928.40/x
  3. Step 3: Cross multiply
    62,791.12x = 86,626.68 × 35,928.40
  4. Step 4: Simplify right side
    62,791.12x = 3,112,358,009.71
  5. Step 5: Solve for x
    x = 3,112,358,009.71/62,791.12
  6. Step 6: Final answer
    x = 49,566.85

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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.