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Finding the Fourth Proportional to 17,056.80, 25,585.20 and 8,762.40

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Solution

The fourth proportional to 17,056.80, 25,585.20 and 8,762.40 is: 13,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,056.80 : 25,585.20 = 8,762.40 : x
  2. Step 2: Convert to fraction form
    17,056.80/25,585.20 = 8,762.40/x
  3. Step 3: Cross multiply
    17,056.80x = 25,585.20 × 8,762.40
  4. Step 4: Simplify right side
    17,056.80x = 224,187,756.48
  5. Step 5: Solve for x
    x = 224,187,756.48/17,056.80
  6. Step 6: Final answer
    x = 13,143.60

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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.