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Finding the Fourth Proportional to 57,648.36, 79,574.58 and 33,782.76

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Solution

The fourth proportional to 57,648.36, 79,574.58 and 33,782.76 is: 46,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,648.36 : 79,574.58 = 33,782.76 : x
  2. Step 2: Convert to fraction form
    57,648.36/79,574.58 = 33,782.76/x
  3. Step 3: Cross multiply
    57,648.36x = 79,574.58 × 33,782.76
  4. Step 4: Simplify right side
    57,648.36x = 2,688,248,938.24
  5. Step 5: Solve for x
    x = 2,688,248,938.24/57,648.36
  6. Step 6: Final answer
    x = 46,631.84

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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.