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Finding the Fourth Proportional to 55,307.57, 76,294.49 and 45,690.57

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Solution

The fourth proportional to 55,307.57, 76,294.49 and 45,690.57 is: 63,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307.57 : 76,294.49 = 45,690.57 : x
  2. Step 2: Convert to fraction form
    55,307.57/76,294.49 = 45,690.57/x
  3. Step 3: Cross multiply
    55,307.57x = 76,294.49 × 45,690.57
  4. Step 4: Simplify right side
    55,307.57x = 3,485,938,850.19
  5. Step 5: Solve for x
    x = 3,485,938,850.19/55,307.57
  6. Step 6: Final answer
    x = 63,028.25

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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.