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Finding the Fourth Proportional to 32,420.78, 44,740.64 and 17,516.78

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Solution

The fourth proportional to 32,420.78, 44,740.64 and 17,516.78 is: 24,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.78 : 44,740.64 = 17,516.78 : x
  2. Step 2: Convert to fraction form
    32,420.78/44,740.64 = 17,516.78/x
  3. Step 3: Cross multiply
    32,420.78x = 44,740.64 × 17,516.78
  4. Step 4: Simplify right side
    32,420.78x = 783,712,103.58
  5. Step 5: Solve for x
    x = 783,712,103.58/32,420.78
  6. Step 6: Final answer
    x = 24,173.14

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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.