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Finding the Fourth Proportional to 27,968.40, 42,001.20 and 14,846.40

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Solution

The fourth proportional to 27,968.40, 42,001.20 and 14,846.40 is: 22,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.40 : 42,001.20 = 14,846.40 : x
  2. Step 2: Convert to fraction form
    27,968.40/42,001.20 = 14,846.40/x
  3. Step 3: Cross multiply
    27,968.40x = 42,001.20 × 14,846.40
  4. Step 4: Simplify right side
    27,968.40x = 623,566,615.68
  5. Step 5: Solve for x
    x = 623,566,615.68/27,968.40
  6. Step 6: Final answer
    x = 22,295.40

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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.