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Finding the Fourth Proportional to 26,700.48, 36,840.96 and 15,516.48

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Solution

The fourth proportional to 26,700.48, 36,840.96 and 15,516.48 is: 21,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,700.48 : 36,840.96 = 15,516.48 : x
  2. Step 2: Convert to fraction form
    26,700.48/36,840.96 = 15,516.48/x
  3. Step 3: Cross multiply
    26,700.48x = 36,840.96 × 15,516.48
  4. Step 4: Simplify right side
    26,700.48x = 571,642,019.02
  5. Step 5: Solve for x
    x = 571,642,019.02/26,700.48
  6. Step 6: Final answer
    x = 21,409.43

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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.