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Finding the Fourth Proportional to 23,673.60, 35,486.10 and 13,807.80

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Solution

The fourth proportional to 23,673.60, 35,486.10 and 13,807.80 is: 20,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,673.60 : 35,486.10 = 13,807.80 : x
  2. Step 2: Convert to fraction form
    23,673.60/35,486.10 = 13,807.80/x
  3. Step 3: Cross multiply
    23,673.60x = 35,486.10 × 13,807.80
  4. Step 4: Simplify right side
    23,673.60x = 489,984,971.58
  5. Step 5: Solve for x
    x = 489,984,971.58/23,673.60
  6. Step 6: Final answer
    x = 20,697.53

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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.