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Finding the Fourth Proportional to 50,888.61, 70,234.70 and 28,234.89

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Solution

The fourth proportional to 50,888.61, 70,234.70 and 28,234.89 is: 38,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,888.61 : 70,234.70 = 28,234.89 : x
  2. Step 2: Convert to fraction form
    50,888.61/70,234.70 = 28,234.89/x
  3. Step 3: Cross multiply
    50,888.61x = 70,234.70 × 28,234.89
  4. Step 4: Simplify right side
    50,888.61x = 1,983,068,887.51
  5. Step 5: Solve for x
    x = 1,983,068,887.51/50,888.61
  6. Step 6: Final answer
    x = 38,968.82

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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.