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Finding the Fourth Proportional to 30,369.52, 45,554.58 and 10,648.55

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Solution

The fourth proportional to 30,369.52, 45,554.58 and 10,648.55 is: 15,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.52 : 45,554.58 = 10,648.55 : x
  2. Step 2: Convert to fraction form
    30,369.52/45,554.58 = 10,648.55/x
  3. Step 3: Cross multiply
    30,369.52x = 45,554.58 × 10,648.55
  4. Step 4: Simplify right side
    30,369.52x = 485,090,222.86
  5. Step 5: Solve for x
    x = 485,090,222.86/30,369.52
  6. Step 6: Final answer
    x = 15,972.93

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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.