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Finding the Fourth Proportional to 86,676.60, 130,014.90 and 27,516.90

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Solution

The fourth proportional to 86,676.60, 130,014.90 and 27,516.90 is: 41,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,676.60 : 130,014.90 = 27,516.90 : x
  2. Step 2: Convert to fraction form
    86,676.60/130,014.90 = 27,516.90/x
  3. Step 3: Cross multiply
    86,676.60x = 130,014.90 × 27,516.90
  4. Step 4: Simplify right side
    86,676.60x = 3,577,607,001.81
  5. Step 5: Solve for x
    x = 3,577,607,001.81/86,676.60
  6. Step 6: Final answer
    x = 41,275.35

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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.