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Finding the Fourth Proportional to 7,558.70, 11,319.19 and 4,776.98

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Solution

The fourth proportional to 7,558.70, 11,319.19 and 4,776.98 is: 7,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.70 : 11,319.19 = 4,776.98 : x
  2. Step 2: Convert to fraction form
    7,558.70/11,319.19 = 4,776.98/x
  3. Step 3: Cross multiply
    7,558.70x = 11,319.19 × 4,776.98
  4. Step 4: Simplify right side
    7,558.70x = 54,071,475.71
  5. Step 5: Solve for x
    x = 54,071,475.71/7,558.70
  6. Step 6: Final answer
    x = 7,153.55

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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.