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Finding the Fourth Proportional to 18,539.40, 25,584.18 and 10,041.40

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Solution

The fourth proportional to 18,539.40, 25,584.18 and 10,041.40 is: 13,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.40 : 25,584.18 = 10,041.40 : x
  2. Step 2: Convert to fraction form
    18,539.40/25,584.18 = 10,041.40/x
  3. Step 3: Cross multiply
    18,539.40x = 25,584.18 × 10,041.40
  4. Step 4: Simplify right side
    18,539.40x = 256,900,985.05
  5. Step 5: Solve for x
    x = 256,900,985.05/18,539.40
  6. Step 6: Final answer
    x = 13,857.03

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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.