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Finding the Fourth Proportional to 44,356.40, 66,534.60 and 13,187.60

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Solution

The fourth proportional to 44,356.40, 66,534.60 and 13,187.60 is: 19,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,356.40 : 66,534.60 = 13,187.60 : x
  2. Step 2: Convert to fraction form
    44,356.40/66,534.60 = 13,187.60/x
  3. Step 3: Cross multiply
    44,356.40x = 66,534.60 × 13,187.60
  4. Step 4: Simplify right side
    44,356.40x = 877,431,690.96
  5. Step 5: Solve for x
    x = 877,431,690.96/44,356.40
  6. Step 6: Final answer
    x = 19,781.40

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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.