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Finding the Fourth Proportional to 17,878.59, 24,672.60 and 10,809.72

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Solution

The fourth proportional to 17,878.59, 24,672.60 and 10,809.72 is: 14,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.59 : 24,672.60 = 10,809.72 : x
  2. Step 2: Convert to fraction form
    17,878.59/24,672.60 = 10,809.72/x
  3. Step 3: Cross multiply
    17,878.59x = 24,672.60 × 10,809.72
  4. Step 4: Simplify right side
    17,878.59x = 266,703,897.67
  5. Step 5: Solve for x
    x = 266,703,897.67/17,878.59
  6. Step 6: Final answer
    x = 14,917.50

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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.