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Finding the Fourth Proportional to 5,368.66, 7,407.07 and 3,099.71

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Solution

The fourth proportional to 5,368.66, 7,407.07 and 3,099.71 is: 4,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.66 : 7,407.07 = 3,099.71 : x
  2. Step 2: Convert to fraction form
    5,368.66/7,407.07 = 3,099.71/x
  3. Step 3: Cross multiply
    5,368.66x = 7,407.07 × 3,099.71
  4. Step 4: Simplify right side
    5,368.66x = 22,959,731.91
  5. Step 5: Solve for x
    x = 22,959,731.91/5,368.66
  6. Step 6: Final answer
    x = 4,276.62

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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.