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Finding the Fourth Proportional to 52,578.70, 78,802.42 and 26,290.96

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Solution

The fourth proportional to 52,578.70, 78,802.42 and 26,290.96 is: 39,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,578.70 : 78,802.42 = 26,290.96 : x
  2. Step 2: Convert to fraction form
    52,578.70/78,802.42 = 26,290.96/x
  3. Step 3: Cross multiply
    52,578.70x = 78,802.42 × 26,290.96
  4. Step 4: Simplify right side
    52,578.70x = 2,071,791,272.12
  5. Step 5: Solve for x
    x = 2,071,791,272.12/52,578.70
  6. Step 6: Final answer
    x = 39,403.62

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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.