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Finding the Fourth Proportional to 26,663.40, 39,975.90 and 14,980.20

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Solution

The fourth proportional to 26,663.40, 39,975.90 and 14,980.20 is: 22,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,663.40 : 39,975.90 = 14,980.20 : x
  2. Step 2: Convert to fraction form
    26,663.40/39,975.90 = 14,980.20/x
  3. Step 3: Cross multiply
    26,663.40x = 39,975.90 × 14,980.20
  4. Step 4: Simplify right side
    26,663.40x = 598,846,977.18
  5. Step 5: Solve for x
    x = 598,846,977.18/26,663.40
  6. Step 6: Final answer
    x = 22,459.51

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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.