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Finding the Fourth Proportional to 14,670.56, 20,245.06 and 7,955.93

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Solution

The fourth proportional to 14,670.56, 20,245.06 and 7,955.93 is: 10,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.56 : 20,245.06 = 7,955.93 : x
  2. Step 2: Convert to fraction form
    14,670.56/20,245.06 = 7,955.93/x
  3. Step 3: Cross multiply
    14,670.56x = 20,245.06 × 7,955.93
  4. Step 4: Simplify right side
    14,670.56x = 161,068,280.21
  5. Step 5: Solve for x
    x = 161,068,280.21/14,670.56
  6. Step 6: Final answer
    x = 10,979.01

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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.