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Finding the Fourth Proportional to 67,574.39, 93,258.41 and 39,278.25

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Solution

The fourth proportional to 67,574.39, 93,258.41 and 39,278.25 is: 54,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,574.39 : 93,258.41 = 39,278.25 : x
  2. Step 2: Convert to fraction form
    67,574.39/93,258.41 = 39,278.25/x
  3. Step 3: Cross multiply
    67,574.39x = 93,258.41 × 39,278.25
  4. Step 4: Simplify right side
    67,574.39x = 3,663,026,946.19
  5. Step 5: Solve for x
    x = 3,663,026,946.19/67,574.39
  6. Step 6: Final answer
    x = 54,207.33

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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.