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Finding the Fourth Proportional to 19,283.10, 26,611.02 and 10,899.60

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Solution

The fourth proportional to 19,283.10, 26,611.02 and 10,899.60 is: 15,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.10 : 26,611.02 = 10,899.60 : x
  2. Step 2: Convert to fraction form
    19,283.10/26,611.02 = 10,899.60/x
  3. Step 3: Cross multiply
    19,283.10x = 26,611.02 × 10,899.60
  4. Step 4: Simplify right side
    19,283.10x = 290,049,473.59
  5. Step 5: Solve for x
    x = 290,049,473.59/19,283.10
  6. Step 6: Final answer
    x = 15,041.64

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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.