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Finding the Fourth Proportional to 86,701.92, 130,055.56 and 23,521.80

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Solution

The fourth proportional to 86,701.92, 130,055.56 and 23,521.80 is: 35,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,701.92 : 130,055.56 = 23,521.80 : x
  2. Step 2: Convert to fraction form
    86,701.92/130,055.56 = 23,521.80/x
  3. Step 3: Cross multiply
    86,701.92x = 130,055.56 × 23,521.80
  4. Step 4: Simplify right side
    86,701.92x = 3,059,140,871.21
  5. Step 5: Solve for x
    x = 3,059,140,871.21/86,701.92
  6. Step 6: Final answer
    x = 35,283.43

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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.