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Finding the Fourth Proportional to 60,576.68, 90,875.88 and 20,599.40

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Solution

The fourth proportional to 60,576.68, 90,875.88 and 20,599.40 is: 30,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,576.68 : 90,875.88 = 20,599.40 : x
  2. Step 2: Convert to fraction form
    60,576.68/90,875.88 = 20,599.40/x
  3. Step 3: Cross multiply
    60,576.68x = 90,875.88 × 20,599.40
  4. Step 4: Simplify right side
    60,576.68x = 1,871,988,602.47
  5. Step 5: Solve for x
    x = 1,871,988,602.47/60,576.68
  6. Step 6: Final answer
    x = 30,902.79

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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.