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Finding the Fourth Proportional to 64,823.67, 89,456.13 and 36,142.98

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Solution

The fourth proportional to 64,823.67, 89,456.13 and 36,142.98 is: 49,877.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,823.67 : 89,456.13 = 36,142.98 : x
  2. Step 2: Convert to fraction form
    64,823.67/89,456.13 = 36,142.98/x
  3. Step 3: Cross multiply
    64,823.67x = 89,456.13 × 36,142.98
  4. Step 4: Simplify right side
    64,823.67x = 3,233,211,117.47
  5. Step 5: Solve for x
    x = 3,233,211,117.47/64,823.67
  6. Step 6: Final answer
    x = 49,877.01

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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.