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Finding the Fourth Proportional to 55,602.72, 76,482.90 and 48,763.08

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Solution

The fourth proportional to 55,602.72, 76,482.90 and 48,763.08 is: 67,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,602.72 : 76,482.90 = 48,763.08 : x
  2. Step 2: Convert to fraction form
    55,602.72/76,482.90 = 48,763.08/x
  3. Step 3: Cross multiply
    55,602.72x = 76,482.90 × 48,763.08
  4. Step 4: Simplify right side
    55,602.72x = 3,729,541,771.33
  5. Step 5: Solve for x
    x = 3,729,541,771.33/55,602.72
  6. Step 6: Final answer
    x = 67,074.81

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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.