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Finding the Fourth Proportional to 64,230.40, 96,345.60 and 33,126.40

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Solution

The fourth proportional to 64,230.40, 96,345.60 and 33,126.40 is: 49,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,230.40 : 96,345.60 = 33,126.40 : x
  2. Step 2: Convert to fraction form
    64,230.40/96,345.60 = 33,126.40/x
  3. Step 3: Cross multiply
    64,230.40x = 96,345.60 × 33,126.40
  4. Step 4: Simplify right side
    64,230.40x = 3,191,582,883.84
  5. Step 5: Solve for x
    x = 3,191,582,883.84/64,230.40
  6. Step 6: Final answer
    x = 49,689.60

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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.