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Finding the Fourth Proportional to 56,476.80, 84,798.90 and 31,566.60

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Solution

The fourth proportional to 56,476.80, 84,798.90 and 31,566.60 is: 47,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,476.80 : 84,798.90 = 31,566.60 : x
  2. Step 2: Convert to fraction form
    56,476.80/84,798.90 = 31,566.60/x
  3. Step 3: Cross multiply
    56,476.80x = 84,798.90 × 31,566.60
  4. Step 4: Simplify right side
    56,476.80x = 2,676,812,956.74
  5. Step 5: Solve for x
    x = 2,676,812,956.74/56,476.80
  6. Step 6: Final answer
    x = 47,396.68

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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.