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Finding the Fourth Proportional to 7,479.81, 11,222.95 and 4,013.01

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Solution

The fourth proportional to 7,479.81, 11,222.95 and 4,013.01 is: 6,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.81 : 11,222.95 = 4,013.01 : x
  2. Step 2: Convert to fraction form
    7,479.81/11,222.95 = 4,013.01/x
  3. Step 3: Cross multiply
    7,479.81x = 11,222.95 × 4,013.01
  4. Step 4: Simplify right side
    7,479.81x = 45,037,810.58
  5. Step 5: Solve for x
    x = 45,037,810.58/7,479.81
  6. Step 6: Final answer
    x = 6,021.25

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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.