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Finding the Fourth Proportional to 61,776.51, 85,157.24 and 37,858.83

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Solution

The fourth proportional to 61,776.51, 85,157.24 and 37,858.83 is: 52,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,776.51 : 85,157.24 = 37,858.83 : x
  2. Step 2: Convert to fraction form
    61,776.51/85,157.24 = 37,858.83/x
  3. Step 3: Cross multiply
    61,776.51x = 85,157.24 × 37,858.83
  4. Step 4: Simplify right side
    61,776.51x = 3,223,953,283.14
  5. Step 5: Solve for x
    x = 3,223,953,283.14/61,776.51
  6. Step 6: Final answer
    x = 52,187.37

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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.