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Finding the Fourth Proportional to 14,980.16, 22,490.40 and 7,966.40

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Solution

The fourth proportional to 14,980.16, 22,490.40 and 7,966.40 is: 11,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.16 : 22,490.40 = 7,966.40 : x
  2. Step 2: Convert to fraction form
    14,980.16/22,490.40 = 7,966.40/x
  3. Step 3: Cross multiply
    14,980.16x = 22,490.40 × 7,966.40
  4. Step 4: Simplify right side
    14,980.16x = 179,167,522.56
  5. Step 5: Solve for x
    x = 179,167,522.56/14,980.16
  6. Step 6: Final answer
    x = 11,960.32

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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.