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Finding the Fourth Proportional to 18,453.71, 25,466.19 and 10,070.21

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Solution

The fourth proportional to 18,453.71, 25,466.19 and 10,070.21 is: 13,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.71 : 25,466.19 = 10,070.21 : x
  2. Step 2: Convert to fraction form
    18,453.71/25,466.19 = 10,070.21/x
  3. Step 3: Cross multiply
    18,453.71x = 25,466.19 × 10,070.21
  4. Step 4: Simplify right side
    18,453.71x = 256,449,881.20
  5. Step 5: Solve for x
    x = 256,449,881.20/18,453.71
  6. Step 6: Final answer
    x = 13,896.93

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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.