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Finding the Fourth Proportional to 67,905.28, 93,709.44 and 38,097.28

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Solution

The fourth proportional to 67,905.28, 93,709.44 and 38,097.28 is: 52,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,905.28 : 93,709.44 = 38,097.28 : x
  2. Step 2: Convert to fraction form
    67,905.28/93,709.44 = 38,097.28/x
  3. Step 3: Cross multiply
    67,905.28x = 93,709.44 × 38,097.28
  4. Step 4: Simplify right side
    67,905.28x = 3,570,074,774.32
  5. Step 5: Solve for x
    x = 3,570,074,774.32/67,905.28
  6. Step 6: Final answer
    x = 52,574.33

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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.