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Finding the Fourth Proportional to 71,275.48, 98,346.74 and 48,314.40

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Solution

The fourth proportional to 71,275.48, 98,346.74 and 48,314.40 is: 66,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,275.48 : 98,346.74 = 48,314.40 : x
  2. Step 2: Convert to fraction form
    71,275.48/98,346.74 = 48,314.40/x
  3. Step 3: Cross multiply
    71,275.48x = 98,346.74 × 48,314.40
  4. Step 4: Simplify right side
    71,275.48x = 4,751,563,735.06
  5. Step 5: Solve for x
    x = 4,751,563,735.06/71,275.48
  6. Step 6: Final answer
    x = 66,664.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.