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Finding the Fourth Proportional to 6,488.88, 8,958.93 and 4,994.16

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Solution

The fourth proportional to 6,488.88, 8,958.93 and 4,994.16 is: 6,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.88 : 8,958.93 = 4,994.16 : x
  2. Step 2: Convert to fraction form
    6,488.88/8,958.93 = 4,994.16/x
  3. Step 3: Cross multiply
    6,488.88x = 8,958.93 × 4,994.16
  4. Step 4: Simplify right side
    6,488.88x = 44,742,329.85
  5. Step 5: Solve for x
    x = 44,742,329.85/6,488.88
  6. Step 6: Final answer
    x = 6,895.23

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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.