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Finding the Fourth Proportional to 58,803.40, 81,155.68 and 34,930.20

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Solution

The fourth proportional to 58,803.40, 81,155.68 and 34,930.20 is: 48,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,803.40 : 81,155.68 = 34,930.20 : x
  2. Step 2: Convert to fraction form
    58,803.40/81,155.68 = 34,930.20/x
  3. Step 3: Cross multiply
    58,803.40x = 81,155.68 × 34,930.20
  4. Step 4: Simplify right side
    58,803.40x = 2,834,784,133.54
  5. Step 5: Solve for x
    x = 2,834,784,133.54/58,803.40
  6. Step 6: Final answer
    x = 48,207.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.