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Finding the Fourth Proportional to 6,903.60, 10,343.20 and 6,675.20

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Solution

The fourth proportional to 6,903.60, 10,343.20 and 6,675.20 is: 10,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.60 : 10,343.20 = 6,675.20 : x
  2. Step 2: Convert to fraction form
    6,903.60/10,343.20 = 6,675.20/x
  3. Step 3: Cross multiply
    6,903.60x = 10,343.20 × 6,675.20
  4. Step 4: Simplify right side
    6,903.60x = 69,042,928.64
  5. Step 5: Solve for x
    x = 69,042,928.64/6,903.60
  6. Step 6: Final answer
    x = 10,001.00

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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.