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Finding the Fourth Proportional to 28,916.46, 43,374.69 and 9,195.02

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Solution

The fourth proportional to 28,916.46, 43,374.69 and 9,195.02 is: 13,792.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.46 : 43,374.69 = 9,195.02 : x
  2. Step 2: Convert to fraction form
    28,916.46/43,374.69 = 9,195.02/x
  3. Step 3: Cross multiply
    28,916.46x = 43,374.69 × 9,195.02
  4. Step 4: Simplify right side
    28,916.46x = 398,830,925.17
  5. Step 5: Solve for x
    x = 398,830,925.17/28,916.46
  6. Step 6: Final answer
    x = 13,792.52

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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.