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Finding the Fourth Proportional to 62,015.79, 85,483.53 and 56,867.34

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Solution

The fourth proportional to 62,015.79, 85,483.53 and 56,867.34 is: 78,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,015.79 : 85,483.53 = 56,867.34 : x
  2. Step 2: Convert to fraction form
    62,015.79/85,483.53 = 56,867.34/x
  3. Step 3: Cross multiply
    62,015.79x = 85,483.53 × 56,867.34
  4. Step 4: Simplify right side
    62,015.79x = 4,861,220,964.91
  5. Step 5: Solve for x
    x = 4,861,220,964.91/62,015.79
  6. Step 6: Final answer
    x = 78,386.83

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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.