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Finding the Fourth Proportional to 63,145.80, 94,723.80 and 21,024.36

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Solution

The fourth proportional to 63,145.80, 94,723.80 and 21,024.36 is: 31,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,145.80 : 94,723.80 = 21,024.36 : x
  2. Step 2: Convert to fraction form
    63,145.80/94,723.80 = 21,024.36/x
  3. Step 3: Cross multiply
    63,145.80x = 94,723.80 × 21,024.36
  4. Step 4: Simplify right side
    63,145.80x = 1,991,507,271.77
  5. Step 5: Solve for x
    x = 1,991,507,271.77/63,145.80
  6. Step 6: Final answer
    x = 31,538.24

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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.