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Finding the Fourth Proportional to 70,549.92, 97,360.38 and 38,718.81

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Solution

The fourth proportional to 70,549.92, 97,360.38 and 38,718.81 is: 53,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,549.92 : 97,360.38 = 38,718.81 : x
  2. Step 2: Convert to fraction form
    70,549.92/97,360.38 = 38,718.81/x
  3. Step 3: Cross multiply
    70,549.92x = 97,360.38 × 38,718.81
  4. Step 4: Simplify right side
    70,549.92x = 3,769,678,054.75
  5. Step 5: Solve for x
    x = 3,769,678,054.75/70,549.92
  6. Step 6: Final answer
    x = 53,432.78

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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.