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Finding the Fourth Proportional to 2,957.76, 4,436.16 and 1,009.92

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Solution

The fourth proportional to 2,957.76, 4,436.16 and 1,009.92 is: 1,514.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.76 : 4,436.16 = 1,009.92 : x
  2. Step 2: Convert to fraction form
    2,957.76/4,436.16 = 1,009.92/x
  3. Step 3: Cross multiply
    2,957.76x = 4,436.16 × 1,009.92
  4. Step 4: Simplify right side
    2,957.76x = 4,480,166.71
  5. Step 5: Solve for x
    x = 4,480,166.71/2,957.76
  6. Step 6: Final answer
    x = 1,514.72

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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.