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Finding the Fourth Proportional to 28,526.86, 42,794.38 and 8,807.10

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Solution

The fourth proportional to 28,526.86, 42,794.38 and 8,807.10 is: 13,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.86 : 42,794.38 = 8,807.10 : x
  2. Step 2: Convert to fraction form
    28,526.86/42,794.38 = 8,807.10/x
  3. Step 3: Cross multiply
    28,526.86x = 42,794.38 × 8,807.10
  4. Step 4: Simplify right side
    28,526.86x = 376,894,384.10
  5. Step 5: Solve for x
    x = 376,894,384.10/28,526.86
  6. Step 6: Final answer
    x = 13,211.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.