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Finding the Fourth Proportional to 57,966.16, 80,005.80 and 35,312.64

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Solution

The fourth proportional to 57,966.16, 80,005.80 and 35,312.64 is: 48,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,966.16 : 80,005.80 = 35,312.64 : x
  2. Step 2: Convert to fraction form
    57,966.16/80,005.80 = 35,312.64/x
  3. Step 3: Cross multiply
    57,966.16x = 80,005.80 × 35,312.64
  4. Step 4: Simplify right side
    57,966.16x = 2,825,216,013.31
  5. Step 5: Solve for x
    x = 2,825,216,013.31/57,966.16
  6. Step 6: Final answer
    x = 48,739.06

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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.