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Finding the Fourth Proportional to 61,683.84, 85,127.63 and 34,816.55

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Solution

The fourth proportional to 61,683.84, 85,127.63 and 34,816.55 is: 48,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683.84 : 85,127.63 = 34,816.55 : x
  2. Step 2: Convert to fraction form
    61,683.84/85,127.63 = 34,816.55/x
  3. Step 3: Cross multiply
    61,683.84x = 85,127.63 × 34,816.55
  4. Step 4: Simplify right side
    61,683.84x = 2,963,850,047.68
  5. Step 5: Solve for x
    x = 2,963,850,047.68/61,683.84
  6. Step 6: Final answer
    x = 48,049.05

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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.