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Finding the Fourth Proportional to 58,163.84, 87,246.20 and 31,854.22

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Solution

The fourth proportional to 58,163.84, 87,246.20 and 31,854.22 is: 47,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,163.84 : 87,246.20 = 31,854.22 : x
  2. Step 2: Convert to fraction form
    58,163.84/87,246.20 = 31,854.22/x
  3. Step 3: Cross multiply
    58,163.84x = 87,246.20 × 31,854.22
  4. Step 4: Simplify right side
    58,163.84x = 2,779,159,648.96
  5. Step 5: Solve for x
    x = 2,779,159,648.96/58,163.84
  6. Step 6: Final answer
    x = 47,781.57

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1.5x scale

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.