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Finding the Fourth Proportional to 61,239.16, 91,859.18 and 16,864.92

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Solution

The fourth proportional to 61,239.16, 91,859.18 and 16,864.92 is: 25,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.16 : 91,859.18 = 16,864.92 : x
  2. Step 2: Convert to fraction form
    61,239.16/91,859.18 = 16,864.92/x
  3. Step 3: Cross multiply
    61,239.16x = 91,859.18 × 16,864.92
  4. Step 4: Simplify right side
    61,239.16x = 1,549,197,721.97
  5. Step 5: Solve for x
    x = 1,549,197,721.97/61,239.16
  6. Step 6: Final answer
    x = 25,297.50

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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.