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Finding the Fourth Proportional to 18,673.74, 25,764.22 and 11,114

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Solution

The fourth proportional to 18,673.74, 25,764.22 and 11,114 is: 15,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.74 : 25,764.22 = 11,114 : x
  2. Step 2: Convert to fraction form
    18,673.74/25,764.22 = 11,114/x
  3. Step 3: Cross multiply
    18,673.74x = 25,764.22 × 11,114
  4. Step 4: Simplify right side
    18,673.74x = 286,343,541.08
  5. Step 5: Solve for x
    x = 286,343,541.08/18,673.74
  6. Step 6: Final answer
    x = 15,334.02

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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.