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Finding the Fourth Proportional to 9,697.60, 14,527.20 and 5,790.40

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Solution

The fourth proportional to 9,697.60, 14,527.20 and 5,790.40 is: 8,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,697.60 : 14,527.20 = 5,790.40 : x
  2. Step 2: Convert to fraction form
    9,697.60/14,527.20 = 5,790.40/x
  3. Step 3: Cross multiply
    9,697.60x = 14,527.20 × 5,790.40
  4. Step 4: Simplify right side
    9,697.60x = 84,118,298.88
  5. Step 5: Solve for x
    x = 84,118,298.88/9,697.60
  6. Step 6: Final answer
    x = 8,674.14

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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.