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Finding the Fourth Proportional to 86,259.60, 129,389.40 and 23,930.10

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Solution

The fourth proportional to 86,259.60, 129,389.40 and 23,930.10 is: 35,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,259.60 : 129,389.40 = 23,930.10 : x
  2. Step 2: Convert to fraction form
    86,259.60/129,389.40 = 23,930.10/x
  3. Step 3: Cross multiply
    86,259.60x = 129,389.40 × 23,930.10
  4. Step 4: Simplify right side
    86,259.60x = 3,096,301,280.94
  5. Step 5: Solve for x
    x = 3,096,301,280.94/86,259.60
  6. Step 6: Final answer
    x = 35,895.15

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Similar ratio
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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.