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Finding the Fourth Proportional to 19,203.51, 26,505.86 and 12,507.51

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Solution

The fourth proportional to 19,203.51, 26,505.86 and 12,507.51 is: 17,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.51 : 26,505.86 = 12,507.51 : x
  2. Step 2: Convert to fraction form
    19,203.51/26,505.86 = 12,507.51/x
  3. Step 3: Cross multiply
    19,203.51x = 26,505.86 × 12,507.51
  4. Step 4: Simplify right side
    19,203.51x = 331,522,246.47
  5. Step 5: Solve for x
    x = 331,522,246.47/19,203.51
  6. Step 6: Final answer
    x = 17,263.63

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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.