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Finding the Fourth Proportional to 4,687.85, 7,038.04 and 4,062.05

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Solution

The fourth proportional to 4,687.85, 7,038.04 and 4,062.05 is: 6,098.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.85 : 7,038.04 = 4,062.05 : x
  2. Step 2: Convert to fraction form
    4,687.85/7,038.04 = 4,062.05/x
  3. Step 3: Cross multiply
    4,687.85x = 7,038.04 × 4,062.05
  4. Step 4: Simplify right side
    4,687.85x = 28,588,859.05
  5. Step 5: Solve for x
    x = 28,588,859.05/4,687.85
  6. Step 6: Final answer
    x = 6,098.50

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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.