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Finding the Fourth Proportional to 7,948.69, 10,969.19 and 4,411.90

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Solution

The fourth proportional to 7,948.69, 10,969.19 and 4,411.90 is: 6,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.69 : 10,969.19 = 4,411.90 : x
  2. Step 2: Convert to fraction form
    7,948.69/10,969.19 = 4,411.90/x
  3. Step 3: Cross multiply
    7,948.69x = 10,969.19 × 4,411.90
  4. Step 4: Simplify right side
    7,948.69x = 48,394,915.86
  5. Step 5: Solve for x
    x = 48,394,915.86/7,948.69
  6. Step 6: Final answer
    x = 6,088.41

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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.