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Finding the Fourth Proportional to 58,407.62, 80,538.45 and 39,511.94

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Solution

The fourth proportional to 58,407.62, 80,538.45 and 39,511.94 is: 54,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,407.62 : 80,538.45 = 39,511.94 : x
  2. Step 2: Convert to fraction form
    58,407.62/80,538.45 = 39,511.94/x
  3. Step 3: Cross multiply
    58,407.62x = 80,538.45 × 39,511.94
  4. Step 4: Simplify right side
    58,407.62x = 3,182,230,404.09
  5. Step 5: Solve for x
    x = 3,182,230,404.09/58,407.62
  6. Step 6: Final answer
    x = 54,483.14

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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.