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Finding the Fourth Proportional to 60,078.62, 90,123.06 and 15,705.30

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Solution

The fourth proportional to 60,078.62, 90,123.06 and 15,705.30 is: 23,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,078.62 : 90,123.06 = 15,705.30 : x
  2. Step 2: Convert to fraction form
    60,078.62/90,123.06 = 15,705.30/x
  3. Step 3: Cross multiply
    60,078.62x = 90,123.06 × 15,705.30
  4. Step 4: Simplify right side
    60,078.62x = 1,415,410,032.18
  5. Step 5: Solve for x
    x = 1,415,410,032.18/60,078.62
  6. Step 6: Final answer
    x = 23,559.30

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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.