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Finding the Fourth Proportional to 9,903.20, 14,860.20 and 4,060.40

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Solution

The fourth proportional to 9,903.20, 14,860.20 and 4,060.40 is: 6,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.20 : 14,860.20 = 4,060.40 : x
  2. Step 2: Convert to fraction form
    9,903.20/14,860.20 = 4,060.40/x
  3. Step 3: Cross multiply
    9,903.20x = 14,860.20 × 4,060.40
  4. Step 4: Simplify right side
    9,903.20x = 60,338,356.08
  5. Step 5: Solve for x
    x = 60,338,356.08/9,903.20
  6. Step 6: Final answer
    x = 6,092.81

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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.