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Finding the Fourth Proportional to 18,266.54, 25,207.89 and 9,883.04

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Solution

The fourth proportional to 18,266.54, 25,207.89 and 9,883.04 is: 13,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.54 : 25,207.89 = 9,883.04 : x
  2. Step 2: Convert to fraction form
    18,266.54/25,207.89 = 9,883.04/x
  3. Step 3: Cross multiply
    18,266.54x = 25,207.89 × 9,883.04
  4. Step 4: Simplify right side
    18,266.54x = 249,130,585.19
  5. Step 5: Solve for x
    x = 249,130,585.19/18,266.54
  6. Step 6: Final answer
    x = 13,638.63

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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.