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Finding the Fourth Proportional to 56,357.88, 84,549.78 and 16,915.74

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Solution

The fourth proportional to 56,357.88, 84,549.78 and 16,915.74 is: 25,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.88 : 84,549.78 = 16,915.74 : x
  2. Step 2: Convert to fraction form
    56,357.88/84,549.78 = 16,915.74/x
  3. Step 3: Cross multiply
    56,357.88x = 84,549.78 × 16,915.74
  4. Step 4: Simplify right side
    56,357.88x = 1,430,222,095.54
  5. Step 5: Solve for x
    x = 1,430,222,095.54/56,357.88
  6. Step 6: Final answer
    x = 25,377.50

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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.