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Finding the Fourth Proportional to 65,392.98, 98,088.90 and 43,305.18

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Solution

The fourth proportional to 65,392.98, 98,088.90 and 43,305.18 is: 64,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,392.98 : 98,088.90 = 43,305.18 : x
  2. Step 2: Convert to fraction form
    65,392.98/98,088.90 = 43,305.18/x
  3. Step 3: Cross multiply
    65,392.98x = 98,088.90 × 43,305.18
  4. Step 4: Simplify right side
    65,392.98x = 4,247,757,470.50
  5. Step 5: Solve for x
    x = 4,247,757,470.50/65,392.98
  6. Step 6: Final answer
    x = 64,957.39

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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.