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Finding the Fourth Proportional to 65,856.30, 98,784.45 and 48,360.30

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Solution

The fourth proportional to 65,856.30, 98,784.45 and 48,360.30 is: 72,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,856.30 : 98,784.45 = 48,360.30 : x
  2. Step 2: Convert to fraction form
    65,856.30/98,784.45 = 48,360.30/x
  3. Step 3: Cross multiply
    65,856.30x = 98,784.45 × 48,360.30
  4. Step 4: Simplify right side
    65,856.30x = 4,777,245,637.34
  5. Step 5: Solve for x
    x = 4,777,245,637.34/65,856.30
  6. Step 6: Final answer
    x = 72,540.45

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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.