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Finding the Fourth Proportional to 69,868, 96,417.68 and 38,037.12

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Solution

The fourth proportional to 69,868, 96,417.68 and 38,037.12 is: 52,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,868 : 96,417.68 = 38,037.12 : x
  2. Step 2: Convert to fraction form
    69,868/96,417.68 = 38,037.12/x
  3. Step 3: Cross multiply
    69,868x = 96,417.68 × 38,037.12
  4. Step 4: Simplify right side
    69,868x = 3,667,450,864.28
  5. Step 5: Solve for x
    x = 3,667,450,864.28/69,868
  6. Step 6: Final answer
    x = 52,491.14

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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.