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Finding the Fourth Proportional to 71,268.70, 106,903.05 and 29,710.30

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Solution

The fourth proportional to 71,268.70, 106,903.05 and 29,710.30 is: 44,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,268.70 : 106,903.05 = 29,710.30 : x
  2. Step 2: Convert to fraction form
    71,268.70/106,903.05 = 29,710.30/x
  3. Step 3: Cross multiply
    71,268.70x = 106,903.05 × 29,710.30
  4. Step 4: Simplify right side
    71,268.70x = 3,176,121,686.42
  5. Step 5: Solve for x
    x = 3,176,121,686.42/71,268.70
  6. Step 6: Final answer
    x = 44,565.45

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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.