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Finding the Fourth Proportional to 25,783.60, 38,675.40 and 22,404.40

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Solution

The fourth proportional to 25,783.60, 38,675.40 and 22,404.40 is: 33,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.60 : 38,675.40 = 22,404.40 : x
  2. Step 2: Convert to fraction form
    25,783.60/38,675.40 = 22,404.40/x
  3. Step 3: Cross multiply
    25,783.60x = 38,675.40 × 22,404.40
  4. Step 4: Simplify right side
    25,783.60x = 866,499,131.76
  5. Step 5: Solve for x
    x = 866,499,131.76/25,783.60
  6. Step 6: Final answer
    x = 33,606.60

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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.