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Finding the Fourth Proportional to 28,062.65, 42,084.90 and 9,337.65

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Solution

The fourth proportional to 28,062.65, 42,084.90 and 9,337.65 is: 14,003.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.65 : 42,084.90 = 9,337.65 : x
  2. Step 2: Convert to fraction form
    28,062.65/42,084.90 = 9,337.65/x
  3. Step 3: Cross multiply
    28,062.65x = 42,084.90 × 9,337.65
  4. Step 4: Simplify right side
    28,062.65x = 392,974,263.76
  5. Step 5: Solve for x
    x = 392,974,263.76/28,062.65
  6. Step 6: Final answer
    x = 14,003.46

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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.