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Finding the Fourth Proportional to 58,366.32, 86,961.84 and 54,547.20

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Solution

The fourth proportional to 58,366.32, 86,961.84 and 54,547.20 is: 81,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,366.32 : 86,961.84 = 54,547.20 : x
  2. Step 2: Convert to fraction form
    58,366.32/86,961.84 = 54,547.20/x
  3. Step 3: Cross multiply
    58,366.32x = 86,961.84 × 54,547.20
  4. Step 4: Simplify right side
    58,366.32x = 4,743,524,878.85
  5. Step 5: Solve for x
    x = 4,743,524,878.85/58,366.32
  6. Step 6: Final answer
    x = 81,271.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.