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Finding the Fourth Proportional to 10,603.35, 15,912.95 and 4,042.35

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Solution

The fourth proportional to 10,603.35, 15,912.95 and 4,042.35 is: 6,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.35 : 15,912.95 = 4,042.35 : x
  2. Step 2: Convert to fraction form
    10,603.35/15,912.95 = 4,042.35/x
  3. Step 3: Cross multiply
    10,603.35x = 15,912.95 × 4,042.35
  4. Step 4: Simplify right side
    10,603.35x = 64,325,693.22
  5. Step 5: Solve for x
    x = 64,325,693.22/10,603.35
  6. Step 6: Final answer
    x = 6,066.54

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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.