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Finding the Fourth Proportional to 48,999.12, 73,499.09 and 15,719.24

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Solution

The fourth proportional to 48,999.12, 73,499.09 and 15,719.24 is: 23,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,999.12 : 73,499.09 = 15,719.24 : x
  2. Step 2: Convert to fraction form
    48,999.12/73,499.09 = 15,719.24/x
  3. Step 3: Cross multiply
    48,999.12x = 73,499.09 × 15,719.24
  4. Step 4: Simplify right side
    48,999.12x = 1,155,349,389.40
  5. Step 5: Solve for x
    x = 1,155,349,389.40/48,999.12
  6. Step 6: Final answer
    x = 23,578.98

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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.