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Finding the Fourth Proportional to 61,055.94, 91,597.06 and 18,935.18

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Solution

The fourth proportional to 61,055.94, 91,597.06 and 18,935.18 is: 28,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,055.94 : 91,597.06 = 18,935.18 : x
  2. Step 2: Convert to fraction form
    61,055.94/91,597.06 = 18,935.18/x
  3. Step 3: Cross multiply
    61,055.94x = 91,597.06 × 18,935.18
  4. Step 4: Simplify right side
    61,055.94x = 1,734,406,818.57
  5. Step 5: Solve for x
    x = 1,734,406,818.57/61,055.94
  6. Step 6: Final answer
    x = 28,406.85

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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.