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Finding the Fourth Proportional to 7,124.15, 10,685.93 and 6,957.29

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Solution

The fourth proportional to 7,124.15, 10,685.93 and 6,957.29 is: 10,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.15 : 10,685.93 = 6,957.29 : x
  2. Step 2: Convert to fraction form
    7,124.15/10,685.93 = 6,957.29/x
  3. Step 3: Cross multiply
    7,124.15x = 10,685.93 × 6,957.29
  4. Step 4: Simplify right side
    7,124.15x = 74,345,105.86
  5. Step 5: Solve for x
    x = 74,345,105.86/7,124.15
  6. Step 6: Final answer
    x = 10,435.64

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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.