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Finding the Fourth Proportional to 18,366.34, 25,345.66 and 10,813

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Solution

The fourth proportional to 18,366.34, 25,345.66 and 10,813 is: 14,922.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.34 : 25,345.66 = 10,813 : x
  2. Step 2: Convert to fraction form
    18,366.34/25,345.66 = 10,813/x
  3. Step 3: Cross multiply
    18,366.34x = 25,345.66 × 10,813
  4. Step 4: Simplify right side
    18,366.34x = 274,062,621.58
  5. Step 5: Solve for x
    x = 274,062,621.58/18,366.34
  6. Step 6: Final answer
    x = 14,922.01

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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.