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Finding the Fourth Proportional to 56,343.62, 77,748.80 and 33,678.12

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Solution

The fourth proportional to 56,343.62, 77,748.80 and 33,678.12 is: 46,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,343.62 : 77,748.80 = 33,678.12 : x
  2. Step 2: Convert to fraction form
    56,343.62/77,748.80 = 33,678.12/x
  3. Step 3: Cross multiply
    56,343.62x = 77,748.80 × 33,678.12
  4. Step 4: Simplify right side
    56,343.62x = 2,618,433,416.26
  5. Step 5: Solve for x
    x = 2,618,433,416.26/56,343.62
  6. Step 6: Final answer
    x = 46,472.58

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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.