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Finding the Fourth Proportional to 78,506.34, 117,763.35 and 22,350.39

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Solution

The fourth proportional to 78,506.34, 117,763.35 and 22,350.39 is: 33,526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,506.34 : 117,763.35 = 22,350.39 : x
  2. Step 2: Convert to fraction form
    78,506.34/117,763.35 = 22,350.39/x
  3. Step 3: Cross multiply
    78,506.34x = 117,763.35 × 22,350.39
  4. Step 4: Simplify right side
    78,506.34x = 2,632,056,800.21
  5. Step 5: Solve for x
    x = 2,632,056,800.21/78,506.34
  6. Step 6: Final answer
    x = 33,526.68

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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.