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Finding the Fourth Proportional to 65,059.93, 89,783.40 and 38,202.76

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Solution

The fourth proportional to 65,059.93, 89,783.40 and 38,202.76 is: 52,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,059.93 : 89,783.40 = 38,202.76 : x
  2. Step 2: Convert to fraction form
    65,059.93/89,783.40 = 38,202.76/x
  3. Step 3: Cross multiply
    65,059.93x = 89,783.40 × 38,202.76
  4. Step 4: Simplify right side
    65,059.93x = 3,429,973,682.18
  5. Step 5: Solve for x
    x = 3,429,973,682.18/65,059.93
  6. Step 6: Final answer
    x = 52,720.22

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Double scale
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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.