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Finding the Fourth Proportional to 7,196.63, 9,931.19 and 4,009.92

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Solution

The fourth proportional to 7,196.63, 9,931.19 and 4,009.92 is: 5,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,196.63 : 9,931.19 = 4,009.92 : x
  2. Step 2: Convert to fraction form
    7,196.63/9,931.19 = 4,009.92/x
  3. Step 3: Cross multiply
    7,196.63x = 9,931.19 × 4,009.92
  4. Step 4: Simplify right side
    7,196.63x = 39,823,298.53
  5. Step 5: Solve for x
    x = 39,823,298.53/7,196.63
  6. Step 6: Final answer
    x = 5,533.60

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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.