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Finding the Fourth Proportional to 64,258.65, 96,411.03 and 28,717.00

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Solution

The fourth proportional to 64,258.65, 96,411.03 and 28,717.00 is: 43,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,258.65 : 96,411.03 = 28,717.00 : x
  2. Step 2: Convert to fraction form
    64,258.65/96,411.03 = 28,717.00/x
  3. Step 3: Cross multiply
    64,258.65x = 96,411.03 × 28,717.00
  4. Step 4: Simplify right side
    64,258.65x = 2,768,635,199.79
  5. Step 5: Solve for x
    x = 2,768,635,199.79/64,258.65
  6. Step 6: Final answer
    x = 43,085.80

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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.