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Finding the Fourth Proportional to 7,953.98, 10,976.87 and 4,417.21

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Solution

The fourth proportional to 7,953.98, 10,976.87 and 4,417.21 is: 6,095.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.98 : 10,976.87 = 4,417.21 : x
  2. Step 2: Convert to fraction form
    7,953.98/10,976.87 = 4,417.21/x
  3. Step 3: Cross multiply
    7,953.98x = 10,976.87 × 4,417.21
  4. Step 4: Simplify right side
    7,953.98x = 48,487,090.40
  5. Step 5: Solve for x
    x = 48,487,090.40/7,953.98
  6. Step 6: Final answer
    x = 6,095.95

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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.