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Finding the Fourth Proportional to 45,795.96, 68,703.80 and 14,205.40

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Solution

The fourth proportional to 45,795.96, 68,703.80 and 14,205.40 is: 21,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,795.96 : 68,703.80 = 14,205.40 : x
  2. Step 2: Convert to fraction form
    45,795.96/68,703.80 = 14,205.40/x
  3. Step 3: Cross multiply
    45,795.96x = 68,703.80 × 14,205.40
  4. Step 4: Simplify right side
    45,795.96x = 975,964,960.52
  5. Step 5: Solve for x
    x = 975,964,960.52/45,795.96
  6. Step 6: Final answer
    x = 21,311.16

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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.