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Finding the Fourth Proportional to 90,363.63, 135,533.88 and 23,808.90

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Solution

The fourth proportional to 90,363.63, 135,533.88 and 23,808.90 is: 35,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,363.63 : 135,533.88 = 23,808.90 : x
  2. Step 2: Convert to fraction form
    90,363.63/135,533.88 = 23,808.90/x
  3. Step 3: Cross multiply
    90,363.63x = 135,533.88 × 23,808.90
  4. Step 4: Simplify right side
    90,363.63x = 3,226,912,595.53
  5. Step 5: Solve for x
    x = 3,226,912,595.53/90,363.63
  6. Step 6: Final answer
    x = 35,710.30

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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.