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Finding the Fourth Proportional to 89,857.40, 134,761.80 and 26,677.40

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Solution

The fourth proportional to 89,857.40, 134,761.80 and 26,677.40 is: 40,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,857.40 : 134,761.80 = 26,677.40 : x
  2. Step 2: Convert to fraction form
    89,857.40/134,761.80 = 26,677.40/x
  3. Step 3: Cross multiply
    89,857.40x = 134,761.80 × 26,677.40
  4. Step 4: Simplify right side
    89,857.40x = 3,595,094,443.32
  5. Step 5: Solve for x
    x = 3,595,094,443.32/89,857.40
  6. Step 6: Final answer
    x = 40,008.89

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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.