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Finding the Fourth Proportional to 18,482.78, 25,506.60 and 10,099.28

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Solution

The fourth proportional to 18,482.78, 25,506.60 and 10,099.28 is: 13,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.78 : 25,506.60 = 10,099.28 : x
  2. Step 2: Convert to fraction form
    18,482.78/25,506.60 = 10,099.28/x
  3. Step 3: Cross multiply
    18,482.78x = 25,506.60 × 10,099.28
  4. Step 4: Simplify right side
    18,482.78x = 257,598,295.25
  5. Step 5: Solve for x
    x = 257,598,295.25/18,482.78
  6. Step 6: Final answer
    x = 13,937.21

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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.