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Finding the Fourth Proportional to 11,152.95, 15,390.78 and 6,048.18

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Solution

The fourth proportional to 11,152.95, 15,390.78 and 6,048.18 is: 8,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.95 : 15,390.78 = 6,048.18 : x
  2. Step 2: Convert to fraction form
    11,152.95/15,390.78 = 6,048.18/x
  3. Step 3: Cross multiply
    11,152.95x = 15,390.78 × 6,048.18
  4. Step 4: Simplify right side
    11,152.95x = 93,086,257.77
  5. Step 5: Solve for x
    x = 93,086,257.77/11,152.95
  6. Step 6: Final answer
    x = 8,346.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.