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Finding the Fourth Proportional to 60,461.83, 90,678.16 and 18,908.83

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Solution

The fourth proportional to 60,461.83, 90,678.16 and 18,908.83 is: 28,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,461.83 : 90,678.16 = 18,908.83 : x
  2. Step 2: Convert to fraction form
    60,461.83/90,678.16 = 18,908.83/x
  3. Step 3: Cross multiply
    60,461.83x = 90,678.16 × 18,908.83
  4. Step 4: Simplify right side
    60,461.83x = 1,714,617,912.15
  5. Step 5: Solve for x
    x = 1,714,617,912.15/60,461.83
  6. Step 6: Final answer
    x = 28,358.68

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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.