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Finding the Fourth Proportional to 19,235, 28,852.53 and 5,384

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Solution

The fourth proportional to 19,235, 28,852.53 and 5,384 is: 8,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235 : 28,852.53 = 5,384 : x
  2. Step 2: Convert to fraction form
    19,235/28,852.53 = 5,384/x
  3. Step 3: Cross multiply
    19,235x = 28,852.53 × 5,384
  4. Step 4: Simplify right side
    19,235x = 155,342,021.52
  5. Step 5: Solve for x
    x = 155,342,021.52/19,235
  6. Step 6: Final answer
    x = 8,076.01

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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.