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Finding the Fourth Proportional to 60,703.10, 91,051.40 and 18,583.20

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Solution

The fourth proportional to 60,703.10, 91,051.40 and 18,583.20 is: 27,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703.10 : 91,051.40 = 18,583.20 : x
  2. Step 2: Convert to fraction form
    60,703.10/91,051.40 = 18,583.20/x
  3. Step 3: Cross multiply
    60,703.10x = 91,051.40 × 18,583.20
  4. Step 4: Simplify right side
    60,703.10x = 1,692,026,376.48
  5. Step 5: Solve for x
    x = 1,692,026,376.48/60,703.10
  6. Step 6: Final answer
    x = 27,873.81

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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.