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Finding the Fourth Proportional to 4,868.80, 7,303.20 and 1,358.80

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Solution

The fourth proportional to 4,868.80, 7,303.20 and 1,358.80 is: 2,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.80 : 7,303.20 = 1,358.80 : x
  2. Step 2: Convert to fraction form
    4,868.80/7,303.20 = 1,358.80/x
  3. Step 3: Cross multiply
    4,868.80x = 7,303.20 × 1,358.80
  4. Step 4: Simplify right side
    4,868.80x = 9,923,588.16
  5. Step 5: Solve for x
    x = 9,923,588.16/4,868.80
  6. Step 6: Final answer
    x = 2,038.20

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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.