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Finding the Fourth Proportional to 14,772.56, 22,168.62 and 6,981.92

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Solution

The fourth proportional to 14,772.56, 22,168.62 and 6,981.92 is: 10,477.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.56 : 22,168.62 = 6,981.92 : x
  2. Step 2: Convert to fraction form
    14,772.56/22,168.62 = 6,981.92/x
  3. Step 3: Cross multiply
    14,772.56x = 22,168.62 × 6,981.92
  4. Step 4: Simplify right side
    14,772.56x = 154,779,531.35
  5. Step 5: Solve for x
    x = 154,779,531.35/14,772.56
  6. Step 6: Final answer
    x = 10,477.50

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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.