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Finding the Fourth Proportional to 51,159.99, 70,602.92 and 28,498.98

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Solution

The fourth proportional to 51,159.99, 70,602.92 and 28,498.98 is: 39,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.99 : 70,602.92 = 28,498.98 : x
  2. Step 2: Convert to fraction form
    51,159.99/70,602.92 = 28,498.98/x
  3. Step 3: Cross multiply
    51,159.99x = 70,602.92 × 28,498.98
  4. Step 4: Simplify right side
    51,159.99x = 2,012,110,857.58
  5. Step 5: Solve for x
    x = 2,012,110,857.58/51,159.99
  6. Step 6: Final answer
    x = 39,329.77

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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.