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Finding the Fourth Proportional to 61,653.72, 85,075.62 and 35,807.22

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Solution

The fourth proportional to 61,653.72, 85,075.62 and 35,807.22 is: 49,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,653.72 : 85,075.62 = 35,807.22 : x
  2. Step 2: Convert to fraction form
    61,653.72/85,075.62 = 35,807.22/x
  3. Step 3: Cross multiply
    61,653.72x = 85,075.62 × 35,807.22
  4. Step 4: Simplify right side
    61,653.72x = 3,046,321,441.98
  5. Step 5: Solve for x
    x = 3,046,321,441.98/61,653.72
  6. Step 6: Final answer
    x = 49,410.18

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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.