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Finding the Fourth Proportional to 52,673.48, 78,973.23 and 19,389.23

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Solution

The fourth proportional to 52,673.48, 78,973.23 and 19,389.23 is: 29,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,673.48 : 78,973.23 = 19,389.23 : x
  2. Step 2: Convert to fraction form
    52,673.48/78,973.23 = 19,389.23/x
  3. Step 3: Cross multiply
    52,673.48x = 78,973.23 × 19,389.23
  4. Step 4: Simplify right side
    52,673.48x = 1,531,230,120.31
  5. Step 5: Solve for x
    x = 1,531,230,120.31/52,673.48
  6. Step 6: Final answer
    x = 29,070.23

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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.