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Finding the Fourth Proportional to 51,854.59, 71,408.74 and 45,045.50

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Solution

The fourth proportional to 51,854.59, 71,408.74 and 45,045.50 is: 62,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,854.59 : 71,408.74 = 45,045.50 : x
  2. Step 2: Convert to fraction form
    51,854.59/71,408.74 = 45,045.50/x
  3. Step 3: Cross multiply
    51,854.59x = 71,408.74 × 45,045.50
  4. Step 4: Simplify right side
    51,854.59x = 3,216,642,397.67
  5. Step 5: Solve for x
    x = 3,216,642,397.67/51,854.59
  6. Step 6: Final answer
    x = 62,031.97

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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.