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Finding the Fourth Proportional to 60,602.69, 90,913.88 and 17,912.45

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Solution

The fourth proportional to 60,602.69, 90,913.88 and 17,912.45 is: 26,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,602.69 : 90,913.88 = 17,912.45 : x
  2. Step 2: Convert to fraction form
    60,602.69/90,913.88 = 17,912.45/x
  3. Step 3: Cross multiply
    60,602.69x = 90,913.88 × 17,912.45
  4. Step 4: Simplify right side
    60,602.69x = 1,628,490,329.81
  5. Step 5: Solve for x
    x = 1,628,490,329.81/60,602.69
  6. Step 6: Final answer
    x = 26,871.58

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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.