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Finding the Fourth Proportional to 56,315.61, 84,675.95 and 51,926.91

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Solution

The fourth proportional to 56,315.61, 84,675.95 and 51,926.91 is: 78,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,315.61 : 84,675.95 = 51,926.91 : x
  2. Step 2: Convert to fraction form
    56,315.61/84,675.95 = 51,926.91/x
  3. Step 3: Cross multiply
    56,315.61x = 84,675.95 × 51,926.91
  4. Step 4: Simplify right side
    56,315.61x = 4,396,960,175.18
  5. Step 5: Solve for x
    x = 4,396,960,175.18/56,315.61
  6. Step 6: Final answer
    x = 78,077.11

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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.