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Finding the Fourth Proportional to 86,689.89, 130,023.08 and 23,514.08

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Solution

The fourth proportional to 86,689.89, 130,023.08 and 23,514.08 is: 35,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.89 : 130,023.08 = 23,514.08 : x
  2. Step 2: Convert to fraction form
    86,689.89/130,023.08 = 23,514.08/x
  3. Step 3: Cross multiply
    86,689.89x = 130,023.08 × 23,514.08
  4. Step 4: Simplify right side
    86,689.89x = 3,057,373,104.97
  5. Step 5: Solve for x
    x = 3,057,373,104.97/86,689.89
  6. Step 6: Final answer
    x = 35,267.93

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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.