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Finding the Fourth Proportional to 69,919.52, 96,488.32 and 38,088.32

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Solution

The fourth proportional to 69,919.52, 96,488.32 and 38,088.32 is: 52,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.52 : 96,488.32 = 38,088.32 : x
  2. Step 2: Convert to fraction form
    69,919.52/96,488.32 = 38,088.32/x
  3. Step 3: Cross multiply
    69,919.52x = 96,488.32 × 38,088.32
  4. Step 4: Simplify right side
    69,919.52x = 3,675,078,008.42
  5. Step 5: Solve for x
    x = 3,675,078,008.42/69,919.52
  6. Step 6: Final answer
    x = 52,561.55

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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.