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Finding the Fourth Proportional to 34,784.55, 48,000.11 and 19,678.82

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Solution

The fourth proportional to 34,784.55, 48,000.11 and 19,678.82 is: 27,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,784.55 : 48,000.11 = 19,678.82 : x
  2. Step 2: Convert to fraction form
    34,784.55/48,000.11 = 19,678.82/x
  3. Step 3: Cross multiply
    34,784.55x = 48,000.11 × 19,678.82
  4. Step 4: Simplify right side
    34,784.55x = 944,585,186.28
  5. Step 5: Solve for x
    x = 944,585,186.28/34,784.55
  6. Step 6: Final answer
    x = 27,155.31

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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.