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Finding the Fourth Proportional to 9,957.12, 14,935.68 and 9,300.96

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Solution

The fourth proportional to 9,957.12, 14,935.68 and 9,300.96 is: 13,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,957.12 : 14,935.68 = 9,300.96 : x
  2. Step 2: Convert to fraction form
    9,957.12/14,935.68 = 9,300.96/x
  3. Step 3: Cross multiply
    9,957.12x = 14,935.68 × 9,300.96
  4. Step 4: Simplify right side
    9,957.12x = 138,916,162.25
  5. Step 5: Solve for x
    x = 138,916,162.25/9,957.12
  6. Step 6: Final answer
    x = 13,951.44

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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.