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Finding the Fourth Proportional to 56,288, 77,678.88 and 33,933.44

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Solution

The fourth proportional to 56,288, 77,678.88 and 33,933.44 is: 46,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,288 : 77,678.88 = 33,933.44 : x
  2. Step 2: Convert to fraction form
    56,288/77,678.88 = 33,933.44/x
  3. Step 3: Cross multiply
    56,288x = 77,678.88 × 33,933.44
  4. Step 4: Simplify right side
    56,288x = 2,635,911,613.75
  5. Step 5: Solve for x
    x = 2,635,911,613.75/56,288
  6. Step 6: Final answer
    x = 46,829.02

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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.