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Finding the Fourth Proportional to 18,462.17, 25,477.66 and 10,078.67

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Solution

The fourth proportional to 18,462.17, 25,477.66 and 10,078.67 is: 13,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.17 : 25,477.66 = 10,078.67 : x
  2. Step 2: Convert to fraction form
    18,462.17/25,477.66 = 10,078.67/x
  3. Step 3: Cross multiply
    18,462.17x = 25,477.66 × 10,078.67
  4. Step 4: Simplify right side
    18,462.17x = 256,780,927.51
  5. Step 5: Solve for x
    x = 256,780,927.51/18,462.17
  6. Step 6: Final answer
    x = 13,908.49

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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.