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Finding the Fourth Proportional to 65,237.40, 97,856.10 and 38,993.40

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Solution

The fourth proportional to 65,237.40, 97,856.10 and 38,993.40 is: 58,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,237.40 : 97,856.10 = 38,993.40 : x
  2. Step 2: Convert to fraction form
    65,237.40/97,856.10 = 38,993.40/x
  3. Step 3: Cross multiply
    65,237.40x = 97,856.10 × 38,993.40
  4. Step 4: Simplify right side
    65,237.40x = 3,815,742,049.74
  5. Step 5: Solve for x
    x = 3,815,742,049.74/65,237.40
  6. Step 6: Final answer
    x = 58,490.10

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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.