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Finding the Fourth Proportional to 45,866.40, 68,799.60 and 18,164.40

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Solution

The fourth proportional to 45,866.40, 68,799.60 and 18,164.40 is: 27,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,866.40 : 68,799.60 = 18,164.40 : x
  2. Step 2: Convert to fraction form
    45,866.40/68,799.60 = 18,164.40/x
  3. Step 3: Cross multiply
    45,866.40x = 68,799.60 × 18,164.40
  4. Step 4: Simplify right side
    45,866.40x = 1,249,703,454.24
  5. Step 5: Solve for x
    x = 1,249,703,454.24/45,866.40
  6. Step 6: Final answer
    x = 27,246.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.