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Finding the Fourth Proportional to 15,098.76, 20,848.71 and 9,802.62

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Solution

The fourth proportional to 15,098.76, 20,848.71 and 9,802.62 is: 13,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,098.76 : 20,848.71 = 9,802.62 : x
  2. Step 2: Convert to fraction form
    15,098.76/20,848.71 = 9,802.62/x
  3. Step 3: Cross multiply
    15,098.76x = 20,848.71 × 9,802.62
  4. Step 4: Simplify right side
    15,098.76x = 204,371,981.62
  5. Step 5: Solve for x
    x = 204,371,981.62/15,098.76
  6. Step 6: Final answer
    x = 13,535.68

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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.