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Finding the Fourth Proportional to 50,732.99, 70,005.53 and 28,068.99

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Solution

The fourth proportional to 50,732.99, 70,005.53 and 28,068.99 is: 38,731.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,732.99 : 70,005.53 = 28,068.99 : x
  2. Step 2: Convert to fraction form
    50,732.99/70,005.53 = 28,068.99/x
  3. Step 3: Cross multiply
    50,732.99x = 70,005.53 × 28,068.99
  4. Step 4: Simplify right side
    50,732.99x = 1,964,984,381.17
  5. Step 5: Solve for x
    x = 1,964,984,381.17/50,732.99
  6. Step 6: Final answer
    x = 38,731.89

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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.