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Finding the Fourth Proportional to 30,775.56, 46,169.55 and 9,718.89

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Solution

The fourth proportional to 30,775.56, 46,169.55 and 9,718.89 is: 14,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.56 : 46,169.55 = 9,718.89 : x
  2. Step 2: Convert to fraction form
    30,775.56/46,169.55 = 9,718.89/x
  3. Step 3: Cross multiply
    30,775.56x = 46,169.55 × 9,718.89
  4. Step 4: Simplify right side
    30,775.56x = 448,716,498.36
  5. Step 5: Solve for x
    x = 448,716,498.36/30,775.56
  6. Step 6: Final answer
    x = 14,580.29

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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.