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Finding the Fourth Proportional to 45,574.68, 68,364.45 and 14,407.50

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Solution

The fourth proportional to 45,574.68, 68,364.45 and 14,407.50 is: 21,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,574.68 : 68,364.45 = 14,407.50 : x
  2. Step 2: Convert to fraction form
    45,574.68/68,364.45 = 14,407.50/x
  3. Step 3: Cross multiply
    45,574.68x = 68,364.45 × 14,407.50
  4. Step 4: Simplify right side
    45,574.68x = 984,960,813.38
  5. Step 5: Solve for x
    x = 984,960,813.38/45,574.68
  6. Step 6: Final answer
    x = 21,612.02

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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.