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Finding the Fourth Proportional to 18,417.34, 25,413.12 and 10,349.44

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Solution

The fourth proportional to 18,417.34, 25,413.12 and 10,349.44 is: 14,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.34 : 25,413.12 = 10,349.44 : x
  2. Step 2: Convert to fraction form
    18,417.34/25,413.12 = 10,349.44/x
  3. Step 3: Cross multiply
    18,417.34x = 25,413.12 × 10,349.44
  4. Step 4: Simplify right side
    18,417.34x = 263,011,560.65
  5. Step 5: Solve for x
    x = 263,011,560.65/18,417.34
  6. Step 6: Final answer
    x = 14,280.65

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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.