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Finding the Fourth Proportional to 28,037.02, 42,054.99 and 7,259.98

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Solution

The fourth proportional to 28,037.02, 42,054.99 and 7,259.98 is: 10,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.02 : 42,054.99 = 7,259.98 : x
  2. Step 2: Convert to fraction form
    28,037.02/42,054.99 = 7,259.98/x
  3. Step 3: Cross multiply
    28,037.02x = 42,054.99 × 7,259.98
  4. Step 4: Simplify right side
    28,037.02x = 305,318,386.30
  5. Step 5: Solve for x
    x = 305,318,386.30/28,037.02
  6. Step 6: Final answer
    x = 10,889.83

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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.