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Finding the Fourth Proportional to 4,938.62, 7,407.11 and 1,475.06

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Solution

The fourth proportional to 4,938.62, 7,407.11 and 1,475.06 is: 2,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.62 : 7,407.11 = 1,475.06 : x
  2. Step 2: Convert to fraction form
    4,938.62/7,407.11 = 1,475.06/x
  3. Step 3: Cross multiply
    4,938.62x = 7,407.11 × 1,475.06
  4. Step 4: Simplify right side
    4,938.62x = 10,925,931.68
  5. Step 5: Solve for x
    x = 10,925,931.68/4,938.62
  6. Step 6: Final answer
    x = 2,212.35

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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.