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Finding the Fourth Proportional to 15,980.66, 23,972.12 and 4,886.49

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Solution

The fourth proportional to 15,980.66, 23,972.12 and 4,886.49 is: 7,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.66 : 23,972.12 = 4,886.49 : x
  2. Step 2: Convert to fraction form
    15,980.66/23,972.12 = 4,886.49/x
  3. Step 3: Cross multiply
    15,980.66x = 23,972.12 × 4,886.49
  4. Step 4: Simplify right side
    15,980.66x = 117,139,608.45
  5. Step 5: Solve for x
    x = 117,139,608.45/15,980.66
  6. Step 6: Final answer
    x = 7,330.09

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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.