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Finding the Fourth Proportional to 14,482.16, 19,981.92 and 8,816.84

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Solution

The fourth proportional to 14,482.16, 19,981.92 and 8,816.84 is: 12,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.16 : 19,981.92 = 8,816.84 : x
  2. Step 2: Convert to fraction form
    14,482.16/19,981.92 = 8,816.84/x
  3. Step 3: Cross multiply
    14,482.16x = 19,981.92 × 8,816.84
  4. Step 4: Simplify right side
    14,482.16x = 176,177,391.53
  5. Step 5: Solve for x
    x = 176,177,391.53/14,482.16
  6. Step 6: Final answer
    x = 12,165.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.