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Finding the Fourth Proportional to 49,140.80, 73,696.80 and 17,547.20

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Solution

The fourth proportional to 49,140.80, 73,696.80 and 17,547.20 is: 26,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,140.80 : 73,696.80 = 17,547.20 : x
  2. Step 2: Convert to fraction form
    49,140.80/73,696.80 = 17,547.20/x
  3. Step 3: Cross multiply
    49,140.80x = 73,696.80 × 17,547.20
  4. Step 4: Simplify right side
    49,140.80x = 1,293,172,488.96
  5. Step 5: Solve for x
    x = 1,293,172,488.96/49,140.80
  6. Step 6: Final answer
    x = 26,315.66

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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.