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Finding the Fourth Proportional to 51,157.63, 70,600.77 and 28,803.07

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Solution

The fourth proportional to 51,157.63, 70,600.77 and 28,803.07 is: 39,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,157.63 : 70,600.77 = 28,803.07 : x
  2. Step 2: Convert to fraction form
    51,157.63/70,600.77 = 28,803.07/x
  3. Step 3: Cross multiply
    51,157.63x = 70,600.77 × 28,803.07
  4. Step 4: Simplify right side
    51,157.63x = 2,033,518,920.36
  5. Step 5: Solve for x
    x = 2,033,518,920.36/51,157.63
  6. Step 6: Final answer
    x = 39,750.06

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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.