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Finding the Fourth Proportional to 45,849.80, 68,774.70 and 14,688.20

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Solution

The fourth proportional to 45,849.80, 68,774.70 and 14,688.20 is: 22,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,849.80 : 68,774.70 = 14,688.20 : x
  2. Step 2: Convert to fraction form
    45,849.80/68,774.70 = 14,688.20/x
  3. Step 3: Cross multiply
    45,849.80x = 68,774.70 × 14,688.20
  4. Step 4: Simplify right side
    45,849.80x = 1,010,176,548.54
  5. Step 5: Solve for x
    x = 1,010,176,548.54/45,849.80
  6. Step 6: Final answer
    x = 22,032.30

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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.