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Finding the Fourth Proportional to 14,986.80, 22,528.80 and 12,848.40

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Solution

The fourth proportional to 14,986.80, 22,528.80 and 12,848.40 is: 19,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.80 : 22,528.80 = 12,848.40 : x
  2. Step 2: Convert to fraction form
    14,986.80/22,528.80 = 12,848.40/x
  3. Step 3: Cross multiply
    14,986.80x = 22,528.80 × 12,848.40
  4. Step 4: Simplify right side
    14,986.80x = 289,459,033.92
  5. Step 5: Solve for x
    x = 289,459,033.92/14,986.80
  6. Step 6: Final answer
    x = 19,314.27

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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.