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Finding the Fourth Proportional to 56,290.96, 77,696.88 and 35,057.68

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Solution

The fourth proportional to 56,290.96, 77,696.88 and 35,057.68 is: 48,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,290.96 : 77,696.88 = 35,057.68 : x
  2. Step 2: Convert to fraction form
    56,290.96/77,696.88 = 35,057.68/x
  3. Step 3: Cross multiply
    56,290.96x = 77,696.88 × 35,057.68
  4. Step 4: Simplify right side
    56,290.96x = 2,723,872,356.04
  5. Step 5: Solve for x
    x = 2,723,872,356.04/56,290.96
  6. Step 6: Final answer
    x = 48,389.16

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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.