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Finding the Fourth Proportional to 18,927.58, 26,119.71 and 10,430.49

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Solution

The fourth proportional to 18,927.58, 26,119.71 and 10,430.49 is: 14,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.58 : 26,119.71 = 10,430.49 : x
  2. Step 2: Convert to fraction form
    18,927.58/26,119.71 = 10,430.49/x
  3. Step 3: Cross multiply
    18,927.58x = 26,119.71 × 10,430.49
  4. Step 4: Simplify right side
    18,927.58x = 272,441,324.98
  5. Step 5: Solve for x
    x = 272,441,324.98/18,927.58
  6. Step 6: Final answer
    x = 14,393.88

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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.