Home / 65,660.10-98,490.15-30,603.30

Finding the Fourth Proportional to 65,660.10, 98,490.15 and 30,603.30

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Solution

The fourth proportional to 65,660.10, 98,490.15 and 30,603.30 is: 45,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,660.10 : 98,490.15 = 30,603.30 : x
  2. Step 2: Convert to fraction form
    65,660.10/98,490.15 = 30,603.30/x
  3. Step 3: Cross multiply
    65,660.10x = 98,490.15 × 30,603.30
  4. Step 4: Simplify right side
    65,660.10x = 3,014,123,607.50
  5. Step 5: Solve for x
    x = 3,014,123,607.50/65,660.10
  6. Step 6: Final answer
    x = 45,904.95

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Double scale
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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.