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Finding the Fourth Proportional to 18,326, 25,290.46 and 10,368.06

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Solution

The fourth proportional to 18,326, 25,290.46 and 10,368.06 is: 14,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326 : 25,290.46 = 10,368.06 : x
  2. Step 2: Convert to fraction form
    18,326/25,290.46 = 10,368.06/x
  3. Step 3: Cross multiply
    18,326x = 25,290.46 × 10,368.06
  4. Step 4: Simplify right side
    18,326x = 262,213,006.71
  5. Step 5: Solve for x
    x = 262,213,006.71/18,326
  6. Step 6: Final answer
    x = 14,308.25

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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.