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Finding the Fourth Proportional to 44,547.30, 66,830.49 and 12,957.90

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Solution

The fourth proportional to 44,547.30, 66,830.49 and 12,957.90 is: 19,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,547.30 : 66,830.49 = 12,957.90 : x
  2. Step 2: Convert to fraction form
    44,547.30/66,830.49 = 12,957.90/x
  3. Step 3: Cross multiply
    44,547.30x = 66,830.49 × 12,957.90
  4. Step 4: Simplify right side
    44,547.30x = 865,982,806.37
  5. Step 5: Solve for x
    x = 865,982,806.37/44,547.30
  6. Step 6: Final answer
    x = 19,439.62

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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.