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Finding the Fourth Proportional to 19,018.92, 26,238.06 and 12,733.32

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Solution

The fourth proportional to 19,018.92, 26,238.06 and 12,733.32 is: 17,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.92 : 26,238.06 = 12,733.32 : x
  2. Step 2: Convert to fraction form
    19,018.92/26,238.06 = 12,733.32/x
  3. Step 3: Cross multiply
    19,018.92x = 26,238.06 × 12,733.32
  4. Step 4: Simplify right side
    19,018.92x = 334,097,614.16
  5. Step 5: Solve for x
    x = 334,097,614.16/19,018.92
  6. Step 6: Final answer
    x = 17,566.59

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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.