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Finding the Fourth Proportional to 26,145, 36,080.10 and 14,969.16

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Solution

The fourth proportional to 26,145, 36,080.10 and 14,969.16 is: 20,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,145 : 36,080.10 = 14,969.16 : x
  2. Step 2: Convert to fraction form
    26,145/36,080.10 = 14,969.16/x
  3. Step 3: Cross multiply
    26,145x = 36,080.10 × 14,969.16
  4. Step 4: Simplify right side
    26,145x = 540,088,789.72
  5. Step 5: Solve for x
    x = 540,088,789.72/26,145
  6. Step 6: Final answer
    x = 20,657.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.