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Finding the Fourth Proportional to 56,613.90, 84,920.85 and 14,493.90

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Solution

The fourth proportional to 56,613.90, 84,920.85 and 14,493.90 is: 21,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,613.90 : 84,920.85 = 14,493.90 : x
  2. Step 2: Convert to fraction form
    56,613.90/84,920.85 = 14,493.90/x
  3. Step 3: Cross multiply
    56,613.90x = 84,920.85 × 14,493.90
  4. Step 4: Simplify right side
    56,613.90x = 1,230,834,307.82
  5. Step 5: Solve for x
    x = 1,230,834,307.82/56,613.90
  6. Step 6: Final answer
    x = 21,740.85

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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.