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Finding the Fourth Proportional to 35,916.92, 53,875.35 and 9,620.99

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Solution

The fourth proportional to 35,916.92, 53,875.35 and 9,620.99 is: 14,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,916.92 : 53,875.35 = 9,620.99 : x
  2. Step 2: Convert to fraction form
    35,916.92/53,875.35 = 9,620.99/x
  3. Step 3: Cross multiply
    35,916.92x = 53,875.35 × 9,620.99
  4. Step 4: Simplify right side
    35,916.92x = 518,333,934.22
  5. Step 5: Solve for x
    x = 518,333,934.22/35,916.92
  6. Step 6: Final answer
    x = 14,431.47

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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.