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Finding the Fourth Proportional to 50,970.66, 70,339.51 and 28,614.66

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Solution

The fourth proportional to 50,970.66, 70,339.51 and 28,614.66 is: 39,488.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,970.66 : 70,339.51 = 28,614.66 : x
  2. Step 2: Convert to fraction form
    50,970.66/70,339.51 = 28,614.66/x
  3. Step 3: Cross multiply
    50,970.66x = 70,339.51 × 28,614.66
  4. Step 4: Simplify right side
    50,970.66x = 2,012,740,827.91
  5. Step 5: Solve for x
    x = 2,012,740,827.91/50,970.66
  6. Step 6: Final answer
    x = 39,488.23

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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.