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Finding the Fourth Proportional to 65,110.60, 97,665.90 and 18,357.40

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Solution

The fourth proportional to 65,110.60, 97,665.90 and 18,357.40 is: 27,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,110.60 : 97,665.90 = 18,357.40 : x
  2. Step 2: Convert to fraction form
    65,110.60/97,665.90 = 18,357.40/x
  3. Step 3: Cross multiply
    65,110.60x = 97,665.90 × 18,357.40
  4. Step 4: Simplify right side
    65,110.60x = 1,792,891,992.66
  5. Step 5: Solve for x
    x = 1,792,891,992.66/65,110.60
  6. Step 6: Final answer
    x = 27,536.10

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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.