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Finding the Fourth Proportional to 28,045.95, 42,064.06 and 7,269.45

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Solution

The fourth proportional to 28,045.95, 42,064.06 and 7,269.45 is: 10,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.95 : 42,064.06 = 7,269.45 : x
  2. Step 2: Convert to fraction form
    28,045.95/42,064.06 = 7,269.45/x
  3. Step 3: Cross multiply
    28,045.95x = 42,064.06 × 7,269.45
  4. Step 4: Simplify right side
    28,045.95x = 305,782,334.30
  5. Step 5: Solve for x
    x = 305,782,334.30/28,045.95
  6. Step 6: Final answer
    x = 10,902.91

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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.