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Finding the Fourth Proportional to 38,604.90, 57,907.35 and 10,902.90

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Solution

The fourth proportional to 38,604.90, 57,907.35 and 10,902.90 is: 16,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,604.90 : 57,907.35 = 10,902.90 : x
  2. Step 2: Convert to fraction form
    38,604.90/57,907.35 = 10,902.90/x
  3. Step 3: Cross multiply
    38,604.90x = 57,907.35 × 10,902.90
  4. Step 4: Simplify right side
    38,604.90x = 631,358,046.32
  5. Step 5: Solve for x
    x = 631,358,046.32/38,604.90
  6. Step 6: Final answer
    x = 16,354.35

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1.5x scale

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.