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Finding the Fourth Proportional to 70,659.81, 97,508.49 and 40,444.13

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Solution

The fourth proportional to 70,659.81, 97,508.49 and 40,444.13 is: 55,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,659.81 : 97,508.49 = 40,444.13 : x
  2. Step 2: Convert to fraction form
    70,659.81/97,508.49 = 40,444.13/x
  3. Step 3: Cross multiply
    70,659.81x = 97,508.49 × 40,444.13
  4. Step 4: Simplify right side
    70,659.81x = 3,943,645,558.12
  5. Step 5: Solve for x
    x = 3,943,645,558.12/70,659.81
  6. Step 6: Final answer
    x = 55,811.72

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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.