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Finding the Fourth Proportional to 56,804.48, 85,244.64 and 19,868.48

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Solution

The fourth proportional to 56,804.48, 85,244.64 and 19,868.48 is: 29,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,804.48 : 85,244.64 = 19,868.48 : x
  2. Step 2: Convert to fraction form
    56,804.48/85,244.64 = 19,868.48/x
  3. Step 3: Cross multiply
    56,804.48x = 85,244.64 × 19,868.48
  4. Step 4: Simplify right side
    56,804.48x = 1,693,681,424.95
  5. Step 5: Solve for x
    x = 1,693,681,424.95/56,804.48
  6. Step 6: Final answer
    x = 29,815.98

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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.