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Finding the Fourth Proportional to 61,950.60, 86,905.80 and 61,950.60

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Solution

The fourth proportional to 61,950.60, 86,905.80 and 61,950.60 is: 86,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,950.60 : 86,905.80 = 61,950.60 : x
  2. Step 2: Convert to fraction form
    61,950.60/86,905.80 = 61,950.60/x
  3. Step 3: Cross multiply
    61,950.60x = 86,905.80 × 61,950.60
  4. Step 4: Simplify right side
    61,950.60x = 5,383,866,453.48
  5. Step 5: Solve for x
    x = 5,383,866,453.48/61,950.60
  6. Step 6: Final answer
    x = 86,905.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.