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Finding the Fourth Proportional to 14,188.56, 19,581.04 and 7,901.84

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Solution

The fourth proportional to 14,188.56, 19,581.04 and 7,901.84 is: 10,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.56 : 19,581.04 = 7,901.84 : x
  2. Step 2: Convert to fraction form
    14,188.56/19,581.04 = 7,901.84/x
  3. Step 3: Cross multiply
    14,188.56x = 19,581.04 × 7,901.84
  4. Step 4: Simplify right side
    14,188.56x = 154,726,245.11
  5. Step 5: Solve for x
    x = 154,726,245.11/14,188.56
  6. Step 6: Final answer
    x = 10,905.00

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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.