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Finding the Fourth Proportional to 72,424.36, 99,840.94 and 50,848.44

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Solution

The fourth proportional to 72,424.36, 99,840.94 and 50,848.44 is: 70,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,424.36 : 99,840.94 = 50,848.44 : x
  2. Step 2: Convert to fraction form
    72,424.36/99,840.94 = 50,848.44/x
  3. Step 3: Cross multiply
    72,424.36x = 99,840.94 × 50,848.44
  4. Step 4: Simplify right side
    72,424.36x = 5,076,756,047.13
  5. Step 5: Solve for x
    x = 5,076,756,047.13/72,424.36
  6. Step 6: Final answer
    x = 70,097.35

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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.