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Finding the Fourth Proportional to 7,541.40, 11,295.90 and 6,245.40

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Solution

The fourth proportional to 7,541.40, 11,295.90 and 6,245.40 is: 9,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,541.40 : 11,295.90 = 6,245.40 : x
  2. Step 2: Convert to fraction form
    7,541.40/11,295.90 = 6,245.40/x
  3. Step 3: Cross multiply
    7,541.40x = 11,295.90 × 6,245.40
  4. Step 4: Simplify right side
    7,541.40x = 70,547,413.86
  5. Step 5: Solve for x
    x = 70,547,413.86/7,541.40
  6. Step 6: Final answer
    x = 9,354.68

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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.