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Finding the Fourth Proportional to 21,373, 32,055.54 and 5,788.60

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Solution

The fourth proportional to 21,373, 32,055.54 and 5,788.60 is: 8,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373 : 32,055.54 = 5,788.60 : x
  2. Step 2: Convert to fraction form
    21,373/32,055.54 = 5,788.60/x
  3. Step 3: Cross multiply
    21,373x = 32,055.54 × 5,788.60
  4. Step 4: Simplify right side
    21,373x = 185,556,698.84
  5. Step 5: Solve for x
    x = 185,556,698.84/21,373
  6. Step 6: Final answer
    x = 8,681.83

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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.