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Finding the Fourth Proportional to 14,334.76, 19,783.90 and 8,047.48

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Solution

The fourth proportional to 14,334.76, 19,783.90 and 8,047.48 is: 11,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,334.76 : 19,783.90 = 8,047.48 : x
  2. Step 2: Convert to fraction form
    14,334.76/19,783.90 = 8,047.48/x
  3. Step 3: Cross multiply
    14,334.76x = 19,783.90 × 8,047.48
  4. Step 4: Simplify right side
    14,334.76x = 159,210,539.57
  5. Step 5: Solve for x
    x = 159,210,539.57/14,334.76
  6. Step 6: Final answer
    x = 11,106.61

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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.