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Finding the Fourth Proportional to 56,995.32, 85,494.72 and 19,554.87

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Solution

The fourth proportional to 56,995.32, 85,494.72 and 19,554.87 is: 29,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,995.32 : 85,494.72 = 19,554.87 : x
  2. Step 2: Convert to fraction form
    56,995.32/85,494.72 = 19,554.87/x
  3. Step 3: Cross multiply
    56,995.32x = 85,494.72 × 19,554.87
  4. Step 4: Simplify right side
    56,995.32x = 1,671,838,208.62
  5. Step 5: Solve for x
    x = 1,671,838,208.62/56,995.32
  6. Step 6: Final answer
    x = 29,332.90

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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.