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Finding the Fourth Proportional to 27,316.40, 40,984.20 and 26,356.40

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Solution

The fourth proportional to 27,316.40, 40,984.20 and 26,356.40 is: 39,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,316.40 : 40,984.20 = 26,356.40 : x
  2. Step 2: Convert to fraction form
    27,316.40/40,984.20 = 26,356.40/x
  3. Step 3: Cross multiply
    27,316.40x = 40,984.20 × 26,356.40
  4. Step 4: Simplify right side
    27,316.40x = 1,080,195,968.88
  5. Step 5: Solve for x
    x = 1,080,195,968.88/27,316.40
  6. Step 6: Final answer
    x = 39,543.86

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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.