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Finding the Fourth Proportional to 14,978.54, 22,446.40 and 10,998.57

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Solution

The fourth proportional to 14,978.54, 22,446.40 and 10,998.57 is: 16,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978.54 : 22,446.40 = 10,998.57 : x
  2. Step 2: Convert to fraction form
    14,978.54/22,446.40 = 10,998.57/x
  3. Step 3: Cross multiply
    14,978.54x = 22,446.40 × 10,998.57
  4. Step 4: Simplify right side
    14,978.54x = 246,878,162.48
  5. Step 5: Solve for x
    x = 246,878,162.48/14,978.54
  6. Step 6: Final answer
    x = 16,482.13

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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.