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Finding the Fourth Proportional to 10,468.96, 15,736.38 and 9,681.64

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Solution

The fourth proportional to 10,468.96, 15,736.38 and 9,681.64 is: 14,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468.96 : 15,736.38 = 9,681.64 : x
  2. Step 2: Convert to fraction form
    10,468.96/15,736.38 = 9,681.64/x
  3. Step 3: Cross multiply
    10,468.96x = 15,736.38 × 9,681.64
  4. Step 4: Simplify right side
    10,468.96x = 152,353,966.06
  5. Step 5: Solve for x
    x = 152,353,966.06/10,468.96
  6. Step 6: Final answer
    x = 14,552.92

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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.