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Finding the Fourth Proportional to 51,293.80, 76,940.70 and 35,547.40

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Solution

The fourth proportional to 51,293.80, 76,940.70 and 35,547.40 is: 53,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,293.80 : 76,940.70 = 35,547.40 : x
  2. Step 2: Convert to fraction form
    51,293.80/76,940.70 = 35,547.40/x
  3. Step 3: Cross multiply
    51,293.80x = 76,940.70 × 35,547.40
  4. Step 4: Simplify right side
    51,293.80x = 2,735,041,839.18
  5. Step 5: Solve for x
    x = 2,735,041,839.18/51,293.80
  6. Step 6: Final answer
    x = 53,321.10

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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.