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Finding the Fourth Proportional to 8,948.03, 12,348.09 and 4,969.07

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Solution

The fourth proportional to 8,948.03, 12,348.09 and 4,969.07 is: 6,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.03 : 12,348.09 = 4,969.07 : x
  2. Step 2: Convert to fraction form
    8,948.03/12,348.09 = 4,969.07/x
  3. Step 3: Cross multiply
    8,948.03x = 12,348.09 × 4,969.07
  4. Step 4: Simplify right side
    8,948.03x = 61,358,461.84
  5. Step 5: Solve for x
    x = 61,358,461.84/8,948.03
  6. Step 6: Final answer
    x = 6,857.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.