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Finding the Fourth Proportional to 62,784.48, 86,620.32 and 35,907.36

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Solution

The fourth proportional to 62,784.48, 86,620.32 and 35,907.36 is: 49,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,784.48 : 86,620.32 = 35,907.36 : x
  2. Step 2: Convert to fraction form
    62,784.48/86,620.32 = 35,907.36/x
  3. Step 3: Cross multiply
    62,784.48x = 86,620.32 × 35,907.36
  4. Step 4: Simplify right side
    62,784.48x = 3,110,307,013.56
  5. Step 5: Solve for x
    x = 3,110,307,013.56/62,784.48
  6. Step 6: Final answer
    x = 49,539.42

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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.