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Finding the Fourth Proportional to 15,646.71, 23,473.09 and 5,113.89

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Solution

The fourth proportional to 15,646.71, 23,473.09 and 5,113.89 is: 7,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.71 : 23,473.09 = 5,113.89 : x
  2. Step 2: Convert to fraction form
    15,646.71/23,473.09 = 5,113.89/x
  3. Step 3: Cross multiply
    15,646.71x = 23,473.09 × 5,113.89
  4. Step 4: Simplify right side
    15,646.71x = 120,038,800.22
  5. Step 5: Solve for x
    x = 120,038,800.22/15,646.71
  6. Step 6: Final answer
    x = 7,671.82

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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.