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Finding the Fourth Proportional to 48,622.78, 72,939.64 and 15,332.99

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Solution

The fourth proportional to 48,622.78, 72,939.64 and 15,332.99 is: 23,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,622.78 : 72,939.64 = 15,332.99 : x
  2. Step 2: Convert to fraction form
    48,622.78/72,939.64 = 15,332.99/x
  3. Step 3: Cross multiply
    48,622.78x = 72,939.64 × 15,332.99
  4. Step 4: Simplify right side
    48,622.78x = 1,118,382,770.72
  5. Step 5: Solve for x
    x = 1,118,382,770.72/48,622.78
  6. Step 6: Final answer
    x = 23,001.21

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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.