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Finding the Fourth Proportional to 4,907.98, 7,362.05 and 1,210.21

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Solution

The fourth proportional to 4,907.98, 7,362.05 and 1,210.21 is: 1,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.98 : 7,362.05 = 1,210.21 : x
  2. Step 2: Convert to fraction form
    4,907.98/7,362.05 = 1,210.21/x
  3. Step 3: Cross multiply
    4,907.98x = 7,362.05 × 1,210.21
  4. Step 4: Simplify right side
    4,907.98x = 8,909,614.71
  5. Step 5: Solve for x
    x = 8,909,614.71/4,907.98
  6. Step 6: Final answer
    x = 1,815.33

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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.