Home / 64,886.28-97,345.62-18,138.78

Finding the Fourth Proportional to 64,886.28, 97,345.62 and 18,138.78

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Solution

The fourth proportional to 64,886.28, 97,345.62 and 18,138.78 is: 27,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.28 : 97,345.62 = 18,138.78 : x
  2. Step 2: Convert to fraction form
    64,886.28/97,345.62 = 18,138.78/x
  3. Step 3: Cross multiply
    64,886.28x = 97,345.62 × 18,138.78
  4. Step 4: Simplify right side
    64,886.28x = 1,765,730,785.14
  5. Step 5: Solve for x
    x = 1,765,730,785.14/64,886.28
  6. Step 6: Final answer
    x = 27,212.70

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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.