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Finding the Fourth Proportional to 11,798.40, 17,697.60 and 4,886.40

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Solution

The fourth proportional to 11,798.40, 17,697.60 and 4,886.40 is: 7,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.40 : 17,697.60 = 4,886.40 : x
  2. Step 2: Convert to fraction form
    11,798.40/17,697.60 = 4,886.40/x
  3. Step 3: Cross multiply
    11,798.40x = 17,697.60 × 4,886.40
  4. Step 4: Simplify right side
    11,798.40x = 86,477,552.64
  5. Step 5: Solve for x
    x = 86,477,552.64/11,798.40
  6. Step 6: Final answer
    x = 7,329.60

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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.