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Finding the Fourth Proportional to 86,955.60, 130,416.30 and 27,775.32

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Solution

The fourth proportional to 86,955.60, 130,416.30 and 27,775.32 is: 41,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,955.60 : 130,416.30 = 27,775.32 : x
  2. Step 2: Convert to fraction form
    86,955.60/130,416.30 = 27,775.32/x
  3. Step 3: Cross multiply
    86,955.60x = 130,416.30 × 27,775.32
  4. Step 4: Simplify right side
    86,955.60x = 3,622,354,465.72
  5. Step 5: Solve for x
    x = 3,622,354,465.72/86,955.60
  6. Step 6: Final answer
    x = 41,657.52

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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.