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Finding the Fourth Proportional to 56,428.80, 77,885.73 and 32,569.80

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Solution

The fourth proportional to 56,428.80, 77,885.73 and 32,569.80 is: 44,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.80 : 77,885.73 = 32,569.80 : x
  2. Step 2: Convert to fraction form
    56,428.80/77,885.73 = 32,569.80/x
  3. Step 3: Cross multiply
    56,428.80x = 77,885.73 × 32,569.80
  4. Step 4: Simplify right side
    56,428.80x = 2,536,722,648.95
  5. Step 5: Solve for x
    x = 2,536,722,648.95/56,428.80
  6. Step 6: Final answer
    x = 44,954.40

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1.5x scale

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.