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Finding the Fourth Proportional to 64,886.61, 89,545.67 and 37,660.66

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Solution

The fourth proportional to 64,886.61, 89,545.67 and 37,660.66 is: 51,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.61 : 89,545.67 = 37,660.66 : x
  2. Step 2: Convert to fraction form
    64,886.61/89,545.67 = 37,660.66/x
  3. Step 3: Cross multiply
    64,886.61x = 89,545.67 × 37,660.66
  4. Step 4: Simplify right side
    64,886.61x = 3,372,348,396.31
  5. Step 5: Solve for x
    x = 3,372,348,396.31/64,886.61
  6. Step 6: Final answer
    x = 51,972.95

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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.