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Finding the Fourth Proportional to 28,374.17, 42,566.72 and 9,653.45

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Solution

The fourth proportional to 28,374.17, 42,566.72 and 9,653.45 is: 14,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.17 : 42,566.72 = 9,653.45 : x
  2. Step 2: Convert to fraction form
    28,374.17/42,566.72 = 9,653.45/x
  3. Step 3: Cross multiply
    28,374.17x = 42,566.72 × 9,653.45
  4. Step 4: Simplify right side
    28,374.17x = 410,915,442.08
  5. Step 5: Solve for x
    x = 410,915,442.08/28,374.17
  6. Step 6: Final answer
    x = 14,482.03

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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.