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Finding the Fourth Proportional to 50,457.70, 75,686.55 and 34,905.70

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Solution

The fourth proportional to 50,457.70, 75,686.55 and 34,905.70 is: 52,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,457.70 : 75,686.55 = 34,905.70 : x
  2. Step 2: Convert to fraction form
    50,457.70/75,686.55 = 34,905.70/x
  3. Step 3: Cross multiply
    50,457.70x = 75,686.55 × 34,905.70
  4. Step 4: Simplify right side
    50,457.70x = 2,641,892,008.34
  5. Step 5: Solve for x
    x = 2,641,892,008.34/50,457.70
  6. Step 6: Final answer
    x = 52,358.55

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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.