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Finding the Fourth Proportional to 56,354.54, 84,574.63 and 20,849.45

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Solution

The fourth proportional to 56,354.54, 84,574.63 and 20,849.45 is: 31,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,354.54 : 84,574.63 = 20,849.45 : x
  2. Step 2: Convert to fraction form
    56,354.54/84,574.63 = 20,849.45/x
  3. Step 3: Cross multiply
    56,354.54x = 84,574.63 × 20,849.45
  4. Step 4: Simplify right side
    56,354.54x = 1,763,334,598.37
  5. Step 5: Solve for x
    x = 1,763,334,598.37/56,354.54
  6. Step 6: Final answer
    x = 31,290.02

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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.