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Finding the Fourth Proportional to 57,746.20, 86,619.30 and 57,746.20

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Solution

The fourth proportional to 57,746.20, 86,619.30 and 57,746.20 is: 86,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,746.20 : 86,619.30 = 57,746.20 : x
  2. Step 2: Convert to fraction form
    57,746.20/86,619.30 = 57,746.20/x
  3. Step 3: Cross multiply
    57,746.20x = 86,619.30 × 57,746.20
  4. Step 4: Simplify right side
    57,746.20x = 5,001,935,421.66
  5. Step 5: Solve for x
    x = 5,001,935,421.66/57,746.20
  6. Step 6: Final answer
    x = 86,619.30

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Similar ratio
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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.