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Finding the Fourth Proportional to 60,830.84, 84,004.30 and 57,517.53

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Solution

The fourth proportional to 60,830.84, 84,004.30 and 57,517.53 is: 79,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,830.84 : 84,004.30 = 57,517.53 : x
  2. Step 2: Convert to fraction form
    60,830.84/84,004.30 = 57,517.53/x
  3. Step 3: Cross multiply
    60,830.84x = 84,004.30 × 57,517.53
  4. Step 4: Simplify right side
    60,830.84x = 4,831,719,845.38
  5. Step 5: Solve for x
    x = 4,831,719,845.38/60,830.84
  6. Step 6: Final answer
    x = 79,428.79

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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.