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Finding the Fourth Proportional to 65,215.66, 97,645.64 and 49,372.76

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Solution

The fourth proportional to 65,215.66, 97,645.64 and 49,372.76 is: 73,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.66 : 97,645.64 = 49,372.76 : x
  2. Step 2: Convert to fraction form
    65,215.66/97,645.64 = 49,372.76/x
  3. Step 3: Cross multiply
    65,215.66x = 97,645.64 × 49,372.76
  4. Step 4: Simplify right side
    65,215.66x = 4,821,034,746.02
  5. Step 5: Solve for x
    x = 4,821,034,746.02/65,215.66
  6. Step 6: Final answer
    x = 73,924.50

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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.