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Finding the Fourth Proportional to 68,628.58, 94,699.44 and 38,415.58

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Solution

The fourth proportional to 68,628.58, 94,699.44 and 38,415.58 is: 53,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,628.58 : 94,699.44 = 38,415.58 : x
  2. Step 2: Convert to fraction form
    68,628.58/94,699.44 = 38,415.58/x
  3. Step 3: Cross multiply
    68,628.58x = 94,699.44 × 38,415.58
  4. Step 4: Simplify right side
    68,628.58x = 3,637,933,913.28
  5. Step 5: Solve for x
    x = 3,637,933,913.28/68,628.58
  6. Step 6: Final answer
    x = 53,009.02

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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.