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Finding the Fourth Proportional to 69,863.99, 96,409.85 and 38,032.20

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Solution

The fourth proportional to 69,863.99, 96,409.85 and 38,032.20 is: 52,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,863.99 : 96,409.85 = 38,032.20 : x
  2. Step 2: Convert to fraction form
    69,863.99/96,409.85 = 38,032.20/x
  3. Step 3: Cross multiply
    69,863.99x = 96,409.85 × 38,032.20
  4. Step 4: Simplify right side
    69,863.99x = 3,666,678,507.01
  5. Step 5: Solve for x
    x = 3,666,678,507.01/69,863.99
  6. Step 6: Final answer
    x = 52,483.10

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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.