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Finding the Fourth Proportional to 35,706.67, 53,484.65 and 28,648.47

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Solution

The fourth proportional to 35,706.67, 53,484.65 and 28,648.47 is: 42,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,706.67 : 53,484.65 = 28,648.47 : x
  2. Step 2: Convert to fraction form
    35,706.67/53,484.65 = 28,648.47/x
  3. Step 3: Cross multiply
    35,706.67x = 53,484.65 × 28,648.47
  4. Step 4: Simplify right side
    35,706.67x = 1,532,253,390.99
  5. Step 5: Solve for x
    x = 1,532,253,390.99/35,706.67
  6. Step 6: Final answer
    x = 42,912.25

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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.