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Finding the Fourth Proportional to 10,547.97, 15,821.97 and 2,756.73

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Solution

The fourth proportional to 10,547.97, 15,821.97 and 2,756.73 is: 4,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.97 : 15,821.97 = 2,756.73 : x
  2. Step 2: Convert to fraction form
    10,547.97/15,821.97 = 2,756.73/x
  3. Step 3: Cross multiply
    10,547.97x = 15,821.97 × 2,756.73
  4. Step 4: Simplify right side
    10,547.97x = 43,616,899.36
  5. Step 5: Solve for x
    x = 43,616,899.36/10,547.97
  6. Step 6: Final answer
    x = 4,135.10

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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.