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Finding the Fourth Proportional to 7,303.70, 10,079.11 and 3,946.51

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Solution

The fourth proportional to 7,303.70, 10,079.11 and 3,946.51 is: 5,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,303.70 : 10,079.11 = 3,946.51 : x
  2. Step 2: Convert to fraction form
    7,303.70/10,079.11 = 3,946.51/x
  3. Step 3: Cross multiply
    7,303.70x = 10,079.11 × 3,946.51
  4. Step 4: Simplify right side
    7,303.70x = 39,777,308.41
  5. Step 5: Solve for x
    x = 39,777,308.41/7,303.70
  6. Step 6: Final answer
    x = 5,446.19

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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.