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Finding the Fourth Proportional to 55,900.80, 83,948.40 and 29,656.80

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Solution

The fourth proportional to 55,900.80, 83,948.40 and 29,656.80 is: 44,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.80 : 83,948.40 = 29,656.80 : x
  2. Step 2: Convert to fraction form
    55,900.80/83,948.40 = 29,656.80/x
  3. Step 3: Cross multiply
    55,900.80x = 83,948.40 × 29,656.80
  4. Step 4: Simplify right side
    55,900.80x = 2,489,640,909.12
  5. Step 5: Solve for x
    x = 2,489,640,909.12/55,900.80
  6. Step 6: Final answer
    x = 44,536.77

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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.