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Finding the Fourth Proportional to 18,265.68, 25,206.62 and 9,882.16

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Solution

The fourth proportional to 18,265.68, 25,206.62 and 9,882.16 is: 13,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.68 : 25,206.62 = 9,882.16 : x
  2. Step 2: Convert to fraction form
    18,265.68/25,206.62 = 9,882.16/x
  3. Step 3: Cross multiply
    18,265.68x = 25,206.62 × 9,882.16
  4. Step 4: Simplify right side
    18,265.68x = 249,095,851.90
  5. Step 5: Solve for x
    x = 249,095,851.90/18,265.68
  6. Step 6: Final answer
    x = 13,637.37

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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.