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Finding the Fourth Proportional to 30,485.96, 45,697.55 and 17,310.50

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Solution

The fourth proportional to 30,485.96, 45,697.55 and 17,310.50 is: 25,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.96 : 45,697.55 = 17,310.50 : x
  2. Step 2: Convert to fraction form
    30,485.96/45,697.55 = 17,310.50/x
  3. Step 3: Cross multiply
    30,485.96x = 45,697.55 × 17,310.50
  4. Step 4: Simplify right side
    30,485.96x = 791,047,124.23
  5. Step 5: Solve for x
    x = 791,047,124.23/30,485.96
  6. Step 6: Final answer
    x = 25,947.92

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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.