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Finding the Fourth Proportional to 61,210.87, 91,816.71 and 16,842.31

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Solution

The fourth proportional to 61,210.87, 91,816.71 and 16,842.31 is: 25,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,210.87 : 91,816.71 = 16,842.31 : x
  2. Step 2: Convert to fraction form
    61,210.87/91,816.71 = 16,842.31/x
  3. Step 3: Cross multiply
    61,210.87x = 91,816.71 × 16,842.31
  4. Step 4: Simplify right side
    61,210.87x = 1,546,405,493.00
  5. Step 5: Solve for x
    x = 1,546,405,493.00/61,210.87
  6. Step 6: Final answer
    x = 25,263.58

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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.