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Finding the Fourth Proportional to 60,861.75, 84,012.65 and 54,477.08

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Solution

The fourth proportional to 60,861.75, 84,012.65 and 54,477.08 is: 75,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,861.75 : 84,012.65 = 54,477.08 : x
  2. Step 2: Convert to fraction form
    60,861.75/84,012.65 = 54,477.08/x
  3. Step 3: Cross multiply
    60,861.75x = 84,012.65 × 54,477.08
  4. Step 4: Simplify right side
    60,861.75x = 4,576,763,855.06
  5. Step 5: Solve for x
    x = 4,576,763,855.06/60,861.75
  6. Step 6: Final answer
    x = 75,199.35

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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.