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Finding the Fourth Proportional to 30,491.68, 41,985.06 and 26,693.60

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Solution

The fourth proportional to 30,491.68, 41,985.06 and 26,693.60 is: 36,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491.68 : 41,985.06 = 26,693.60 : x
  2. Step 2: Convert to fraction form
    30,491.68/41,985.06 = 26,693.60/x
  3. Step 3: Cross multiply
    30,491.68x = 41,985.06 × 26,693.60
  4. Step 4: Simplify right side
    30,491.68x = 1,120,732,397.62
  5. Step 5: Solve for x
    x = 1,120,732,397.62/30,491.68
  6. Step 6: Final answer
    x = 36,755.35

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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.