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Finding the Fourth Proportional to 68,479.04, 94,497.68 and 38,258.40

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Solution

The fourth proportional to 68,479.04, 94,497.68 and 38,258.40 is: 52,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,479.04 : 94,497.68 = 38,258.40 : x
  2. Step 2: Convert to fraction form
    68,479.04/94,497.68 = 38,258.40/x
  3. Step 3: Cross multiply
    68,479.04x = 94,497.68 × 38,258.40
  4. Step 4: Simplify right side
    68,479.04x = 3,615,330,040.51
  5. Step 5: Solve for x
    x = 3,615,330,040.51/68,479.04
  6. Step 6: Final answer
    x = 52,794.70

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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.