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Finding the Fourth Proportional to 58,411.88, 80,554.57 and 38,996.62

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Solution

The fourth proportional to 58,411.88, 80,554.57 and 38,996.62 is: 53,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,411.88 : 80,554.57 = 38,996.62 : x
  2. Step 2: Convert to fraction form
    58,411.88/80,554.57 = 38,996.62/x
  3. Step 3: Cross multiply
    58,411.88x = 80,554.57 × 38,996.62
  4. Step 4: Simplify right side
    58,411.88x = 3,141,355,656.68
  5. Step 5: Solve for x
    x = 3,141,355,656.68/58,411.88
  6. Step 6: Final answer
    x = 53,779.40

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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.