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Finding the Fourth Proportional to 2,800.35, 4,200.53 and 2,368.35

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Solution

The fourth proportional to 2,800.35, 4,200.53 and 2,368.35 is: 3,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.35 : 4,200.53 = 2,368.35 : x
  2. Step 2: Convert to fraction form
    2,800.35/4,200.53 = 2,368.35/x
  3. Step 3: Cross multiply
    2,800.35x = 4,200.53 × 2,368.35
  4. Step 4: Simplify right side
    2,800.35x = 9,948,313.38
  5. Step 5: Solve for x
    x = 9,948,313.38/2,800.35
  6. Step 6: Final answer
    x = 3,552.53

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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.