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Finding the Fourth Proportional to 14,475.75, 21,713.63 and 4,087.50

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Solution

The fourth proportional to 14,475.75, 21,713.63 and 4,087.50 is: 6,131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.75 : 21,713.63 = 4,087.50 : x
  2. Step 2: Convert to fraction form
    14,475.75/21,713.63 = 4,087.50/x
  3. Step 3: Cross multiply
    14,475.75x = 21,713.63 × 4,087.50
  4. Step 4: Simplify right side
    14,475.75x = 88,754,442.19
  5. Step 5: Solve for x
    x = 88,754,442.19/14,475.75
  6. Step 6: Final answer
    x = 6,131.25

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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.