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Finding the Fourth Proportional to 18,448.12, 25,458 and 10,064.60

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Solution

The fourth proportional to 18,448.12, 25,458 and 10,064.60 is: 13,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.12 : 25,458 = 10,064.60 : x
  2. Step 2: Convert to fraction form
    18,448.12/25,458 = 10,064.60/x
  3. Step 3: Cross multiply
    18,448.12x = 25,458 × 10,064.60
  4. Step 4: Simplify right side
    18,448.12x = 256,224,586.80
  5. Step 5: Solve for x
    x = 256,224,586.80/18,448.12
  6. Step 6: Final answer
    x = 13,888.93

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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.