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Finding the Fourth Proportional to 10,358.80, 14,295.72 and 5,880.88

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Solution

The fourth proportional to 10,358.80, 14,295.72 and 5,880.88 is: 8,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.80 : 14,295.72 = 5,880.88 : x
  2. Step 2: Convert to fraction form
    10,358.80/14,295.72 = 5,880.88/x
  3. Step 3: Cross multiply
    10,358.80x = 14,295.72 × 5,880.88
  4. Step 4: Simplify right side
    10,358.80x = 84,071,413.83
  5. Step 5: Solve for x
    x = 84,071,413.83/10,358.80
  6. Step 6: Final answer
    x = 8,115.94

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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.