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Finding the Fourth Proportional to 10,718.31, 16,070.99 and 7,245.03

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Solution

The fourth proportional to 10,718.31, 16,070.99 and 7,245.03 is: 10,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.31 : 16,070.99 = 7,245.03 : x
  2. Step 2: Convert to fraction form
    10,718.31/16,070.99 = 7,245.03/x
  3. Step 3: Cross multiply
    10,718.31x = 16,070.99 × 7,245.03
  4. Step 4: Simplify right side
    10,718.31x = 116,434,768.45
  5. Step 5: Solve for x
    x = 116,434,768.45/10,718.31
  6. Step 6: Final answer
    x = 10,863.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.