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Finding the Fourth Proportional to 18,390.60, 27,592.58 and 9,029.62

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Solution

The fourth proportional to 18,390.60, 27,592.58 and 9,029.62 is: 13,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.60 : 27,592.58 = 9,029.62 : x
  2. Step 2: Convert to fraction form
    18,390.60/27,592.58 = 9,029.62/x
  3. Step 3: Cross multiply
    18,390.60x = 27,592.58 × 9,029.62
  4. Step 4: Simplify right side
    18,390.60x = 249,150,512.22
  5. Step 5: Solve for x
    x = 249,150,512.22/18,390.60
  6. Step 6: Final answer
    x = 13,547.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.