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Finding the Fourth Proportional to 17,883.60, 26,802.45 and 9,986.10

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Solution

The fourth proportional to 17,883.60, 26,802.45 and 9,986.10 is: 14,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,883.60 : 26,802.45 = 9,986.10 : x
  2. Step 2: Convert to fraction form
    17,883.60/26,802.45 = 9,986.10/x
  3. Step 3: Cross multiply
    17,883.60x = 26,802.45 × 9,986.10
  4. Step 4: Simplify right side
    17,883.60x = 267,651,945.95
  5. Step 5: Solve for x
    x = 267,651,945.95/17,883.60
  6. Step 6: Final answer
    x = 14,966.33

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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.