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Finding the Fourth Proportional to 11,842.59, 17,762.52 and 9,880.71

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Solution

The fourth proportional to 11,842.59, 17,762.52 and 9,880.71 is: 14,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.59 : 17,762.52 = 9,880.71 : x
  2. Step 2: Convert to fraction form
    11,842.59/17,762.52 = 9,880.71/x
  3. Step 3: Cross multiply
    11,842.59x = 17,762.52 × 9,880.71
  4. Step 4: Simplify right side
    11,842.59x = 175,506,308.99
  5. Step 5: Solve for x
    x = 175,506,308.99/11,842.59
  6. Step 6: Final answer
    x = 14,819.93

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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.