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Finding the Fourth Proportional to 23,779.16, 35,668.72 and 7,139.16

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Solution

The fourth proportional to 23,779.16, 35,668.72 and 7,139.16 is: 10,708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,779.16 : 35,668.72 = 7,139.16 : x
  2. Step 2: Convert to fraction form
    23,779.16/35,668.72 = 7,139.16/x
  3. Step 3: Cross multiply
    23,779.16x = 35,668.72 × 7,139.16
  4. Step 4: Simplify right side
    23,779.16x = 254,644,699.08
  5. Step 5: Solve for x
    x = 254,644,699.08/23,779.16
  6. Step 6: Final answer
    x = 10,708.73

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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.