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Finding the Fourth Proportional to 30,557.80, 45,844.80 and 10,834.30

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Solution

The fourth proportional to 30,557.80, 45,844.80 and 10,834.30 is: 16,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.80 : 45,844.80 = 10,834.30 : x
  2. Step 2: Convert to fraction form
    30,557.80/45,844.80 = 10,834.30/x
  3. Step 3: Cross multiply
    30,557.80x = 45,844.80 × 10,834.30
  4. Step 4: Simplify right side
    30,557.80x = 496,696,316.64
  5. Step 5: Solve for x
    x = 496,696,316.64/30,557.80
  6. Step 6: Final answer
    x = 16,254.32

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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.