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Finding the Fourth Proportional to 70,301.09, 96,979.16 and 47,632.32

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Solution

The fourth proportional to 70,301.09, 96,979.16 and 47,632.32 is: 65,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,301.09 : 96,979.16 = 47,632.32 : x
  2. Step 2: Convert to fraction form
    70,301.09/96,979.16 = 47,632.32/x
  3. Step 3: Cross multiply
    70,301.09x = 96,979.16 × 47,632.32
  4. Step 4: Simplify right side
    70,301.09x = 4,619,342,144.29
  5. Step 5: Solve for x
    x = 4,619,342,144.29/70,301.09
  6. Step 6: Final answer
    x = 65,707.98

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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.