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Finding the Fourth Proportional to 10,329.30, 15,461.55 and 7,413.30

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Solution

The fourth proportional to 10,329.30, 15,461.55 and 7,413.30 is: 11,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.30 : 15,461.55 = 7,413.30 : x
  2. Step 2: Convert to fraction form
    10,329.30/15,461.55 = 7,413.30/x
  3. Step 3: Cross multiply
    10,329.30x = 15,461.55 × 7,413.30
  4. Step 4: Simplify right side
    10,329.30x = 114,621,108.62
  5. Step 5: Solve for x
    x = 114,621,108.62/10,329.30
  6. Step 6: Final answer
    x = 11,096.70

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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.