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Finding the Fourth Proportional to 17,283.18, 25,920.45 and 4,971.18

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Solution

The fourth proportional to 17,283.18, 25,920.45 and 4,971.18 is: 7,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,283.18 : 25,920.45 = 4,971.18 : x
  2. Step 2: Convert to fraction form
    17,283.18/25,920.45 = 4,971.18/x
  3. Step 3: Cross multiply
    17,283.18x = 25,920.45 × 4,971.18
  4. Step 4: Simplify right side
    17,283.18x = 128,855,222.63
  5. Step 5: Solve for x
    x = 128,855,222.63/17,283.18
  6. Step 6: Final answer
    x = 7,455.53

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1.5x scale

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.