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Finding the Fourth Proportional to 5,870.56, 8,803.28 and 2,220

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Solution

The fourth proportional to 5,870.56, 8,803.28 and 2,220 is: 3,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.56 : 8,803.28 = 2,220 : x
  2. Step 2: Convert to fraction form
    5,870.56/8,803.28 = 2,220/x
  3. Step 3: Cross multiply
    5,870.56x = 8,803.28 × 2,220
  4. Step 4: Simplify right side
    5,870.56x = 19,543,281.60
  5. Step 5: Solve for x
    x = 19,543,281.60/5,870.56
  6. Step 6: Final answer
    x = 3,329.03

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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.