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Finding the Fourth Proportional to 46,590.80, 69,865.72 and 13,751.12

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Solution

The fourth proportional to 46,590.80, 69,865.72 and 13,751.12 is: 20,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,590.80 : 69,865.72 = 13,751.12 : x
  2. Step 2: Convert to fraction form
    46,590.80/69,865.72 = 13,751.12/x
  3. Step 3: Cross multiply
    46,590.80x = 69,865.72 × 13,751.12
  4. Step 4: Simplify right side
    46,590.80x = 960,731,899.61
  5. Step 5: Solve for x
    x = 960,731,899.61/46,590.80
  6. Step 6: Final answer
    x = 20,620.64

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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.