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Finding the Fourth Proportional to 60,822.63, 91,242.65 and 18,706.23

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Solution

The fourth proportional to 60,822.63, 91,242.65 and 18,706.23 is: 28,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,822.63 : 91,242.65 = 18,706.23 : x
  2. Step 2: Convert to fraction form
    60,822.63/91,242.65 = 18,706.23/x
  3. Step 3: Cross multiply
    60,822.63x = 91,242.65 × 18,706.23
  4. Step 4: Simplify right side
    60,822.63x = 1,706,805,903.18
  5. Step 5: Solve for x
    x = 1,706,805,903.18/60,822.63
  6. Step 6: Final answer
    x = 28,062.02

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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.