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Finding the Fourth Proportional to 12,416,708.28, 18,741,681.57 and 12,416,708.28

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Solution

The fourth proportional to 12,416,708.28, 18,741,681.57 and 12,416,708.28 is: 18,741,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416,708.28 : 18,741,681.57 = 12,416,708.28 : x
  2. Step 2: Convert to fraction form
    12,416,708.28/18,741,681.57 = 12,416,708.28/x
  3. Step 3: Cross multiply
    12,416,708.28x = 18,741,681.57 × 12,416,708.28
  4. Step 4: Simplify right side
    12,416,708.28x = 232,709,992,731,342.41
  5. Step 5: Solve for x
    x = 232,709,992,731,342.41/12,416,708.28
  6. Step 6: Final answer
    x = 18,741,681.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.