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Finding the Fourth Proportional to 14,047.96, 21,071.93 and 4,186.99

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Solution

The fourth proportional to 14,047.96, 21,071.93 and 4,186.99 is: 6,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.96 : 21,071.93 = 4,186.99 : x
  2. Step 2: Convert to fraction form
    14,047.96/21,071.93 = 4,186.99/x
  3. Step 3: Cross multiply
    14,047.96x = 21,071.93 × 4,186.99
  4. Step 4: Simplify right side
    14,047.96x = 88,227,960.19
  5. Step 5: Solve for x
    x = 88,227,960.19/14,047.96
  6. Step 6: Final answer
    x = 6,280.48

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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.