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Finding the Fourth Proportional to 56,290.88, 77,666.81 and 33,619.88

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Solution

The fourth proportional to 56,290.88, 77,666.81 and 33,619.88 is: 46,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,290.88 : 77,666.81 = 33,619.88 : x
  2. Step 2: Convert to fraction form
    56,290.88/77,666.81 = 33,619.88/x
  3. Step 3: Cross multiply
    56,290.88x = 77,666.81 × 33,619.88
  4. Step 4: Simplify right side
    56,290.88x = 2,611,148,858.25
  5. Step 5: Solve for x
    x = 2,611,148,858.25/56,290.88
  6. Step 6: Final answer
    x = 46,386.71

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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.