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Finding the Fourth Proportional to 48,149.79, 72,211.73 and 16,980.99

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Solution

The fourth proportional to 48,149.79, 72,211.73 and 16,980.99 is: 25,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,149.79 : 72,211.73 = 16,980.99 : x
  2. Step 2: Convert to fraction form
    48,149.79/72,211.73 = 16,980.99/x
  3. Step 3: Cross multiply
    48,149.79x = 72,211.73 × 16,980.99
  4. Step 4: Simplify right side
    48,149.79x = 1,226,226,580.11
  5. Step 5: Solve for x
    x = 1,226,226,580.11/48,149.79
  6. Step 6: Final answer
    x = 25,466.91

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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.