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Finding the Fourth Proportional to 62,368.90, 86,069.16 and 35,511.42

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Solution

The fourth proportional to 62,368.90, 86,069.16 and 35,511.42 is: 49,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,368.90 : 86,069.16 = 35,511.42 : x
  2. Step 2: Convert to fraction form
    62,368.90/86,069.16 = 35,511.42/x
  3. Step 3: Cross multiply
    62,368.90x = 86,069.16 × 35,511.42
  4. Step 4: Simplify right side
    62,368.90x = 3,056,438,089.81
  5. Step 5: Solve for x
    x = 3,056,438,089.81/62,368.90
  6. Step 6: Final answer
    x = 49,005.80

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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.