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Finding the Fourth Proportional to 14,912.10, 22,368.15 and 12,506.40

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Solution

The fourth proportional to 14,912.10, 22,368.15 and 12,506.40 is: 18,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.10 : 22,368.15 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    14,912.10/22,368.15 = 12,506.40/x
  3. Step 3: Cross multiply
    14,912.10x = 22,368.15 × 12,506.40
  4. Step 4: Simplify right side
    14,912.10x = 279,745,031.16
  5. Step 5: Solve for x
    x = 279,745,031.16/14,912.10
  6. Step 6: Final answer
    x = 18,759.60

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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.