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Finding the Fourth Proportional to 18,570.60, 25,627.50 and 10,187.10

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Solution

The fourth proportional to 18,570.60, 25,627.50 and 10,187.10 is: 14,058.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.60 : 25,627.50 = 10,187.10 : x
  2. Step 2: Convert to fraction form
    18,570.60/25,627.50 = 10,187.10/x
  3. Step 3: Cross multiply
    18,570.60x = 25,627.50 × 10,187.10
  4. Step 4: Simplify right side
    18,570.60x = 261,069,905.25
  5. Step 5: Solve for x
    x = 261,069,905.25/18,570.60
  6. Step 6: Final answer
    x = 14,058.24

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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.