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Finding the Fourth Proportional to 17,155.60, 25,708.80 and 9,744.40

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Solution

The fourth proportional to 17,155.60, 25,708.80 and 9,744.40 is: 14,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155.60 : 25,708.80 = 9,744.40 : x
  2. Step 2: Convert to fraction form
    17,155.60/25,708.80 = 9,744.40/x
  3. Step 3: Cross multiply
    17,155.60x = 25,708.80 × 9,744.40
  4. Step 4: Simplify right side
    17,155.60x = 250,516,830.72
  5. Step 5: Solve for x
    x = 250,516,830.72/17,155.60
  6. Step 6: Final answer
    x = 14,602.63

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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.