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Finding the Fourth Proportional to 7,176.03, 9,899.60 and 4,191.99

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Solution

The fourth proportional to 7,176.03, 9,899.60 and 4,191.99 is: 5,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.03 : 9,899.60 = 4,191.99 : x
  2. Step 2: Convert to fraction form
    7,176.03/9,899.60 = 4,191.99/x
  3. Step 3: Cross multiply
    7,176.03x = 9,899.60 × 4,191.99
  4. Step 4: Simplify right side
    7,176.03x = 41,499,003.24
  5. Step 5: Solve for x
    x = 41,499,003.24/7,176.03
  6. Step 6: Final answer
    x = 5,783.00

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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.