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Finding the Fourth Proportional to 60,547.14, 90,820.80 and 28,949.81

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Solution

The fourth proportional to 60,547.14, 90,820.80 and 28,949.81 is: 43,424.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,547.14 : 90,820.80 = 28,949.81 : x
  2. Step 2: Convert to fraction form
    60,547.14/90,820.80 = 28,949.81/x
  3. Step 3: Cross multiply
    60,547.14x = 90,820.80 × 28,949.81
  4. Step 4: Simplify right side
    60,547.14x = 2,629,244,449.94
  5. Step 5: Solve for x
    x = 2,629,244,449.94/60,547.14
  6. Step 6: Final answer
    x = 43,424.75

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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.