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Finding the Fourth Proportional to 17,271.90, 25,902.99 and 4,788.90

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Solution

The fourth proportional to 17,271.90, 25,902.99 and 4,788.90 is: 7,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,271.90 : 25,902.99 = 4,788.90 : x
  2. Step 2: Convert to fraction form
    17,271.90/25,902.99 = 4,788.90/x
  3. Step 3: Cross multiply
    17,271.90x = 25,902.99 × 4,788.90
  4. Step 4: Simplify right side
    17,271.90x = 124,046,828.81
  5. Step 5: Solve for x
    x = 124,046,828.81/17,271.90
  6. Step 6: Final answer
    x = 7,182.00

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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.