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Finding the Fourth Proportional to 51,335.91, 77,011.28 and 15,800.28

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Solution

The fourth proportional to 51,335.91, 77,011.28 and 15,800.28 is: 23,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,335.91 : 77,011.28 = 15,800.28 : x
  2. Step 2: Convert to fraction form
    51,335.91/77,011.28 = 15,800.28/x
  3. Step 3: Cross multiply
    51,335.91x = 77,011.28 × 15,800.28
  4. Step 4: Simplify right side
    51,335.91x = 1,216,799,478.62
  5. Step 5: Solve for x
    x = 1,216,799,478.62/51,335.91
  6. Step 6: Final answer
    x = 23,702.70

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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.