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Finding the Fourth Proportional to 18,923.14, 26,112.95 and 10,425.07

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Solution

The fourth proportional to 18,923.14, 26,112.95 and 10,425.07 is: 14,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.14 : 26,112.95 = 10,425.07 : x
  2. Step 2: Convert to fraction form
    18,923.14/26,112.95 = 10,425.07/x
  3. Step 3: Cross multiply
    18,923.14x = 26,112.95 × 10,425.07
  4. Step 4: Simplify right side
    18,923.14x = 272,229,292.44
  5. Step 5: Solve for x
    x = 272,229,292.44/18,923.14
  6. Step 6: Final answer
    x = 14,386.05

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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.