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Finding the Fourth Proportional to 52,959.56, 79,484.90 and 30,742.07

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Solution

The fourth proportional to 52,959.56, 79,484.90 and 30,742.07 is: 46,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,959.56 : 79,484.90 = 30,742.07 : x
  2. Step 2: Convert to fraction form
    52,959.56/79,484.90 = 30,742.07/x
  3. Step 3: Cross multiply
    52,959.56x = 79,484.90 × 30,742.07
  4. Step 4: Simplify right side
    52,959.56x = 2,443,529,808.61
  5. Step 5: Solve for x
    x = 2,443,529,808.61/52,959.56
  6. Step 6: Final answer
    x = 46,139.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.