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Finding the Fourth Proportional to 12,416,709.28, 18,741,683.08 and 12,416,709.28

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Solution

The fourth proportional to 12,416,709.28, 18,741,683.08 and 12,416,709.28 is: 18,741,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416,709.28 : 18,741,683.08 = 12,416,709.28 : x
  2. Step 2: Convert to fraction form
    12,416,709.28/18,741,683.08 = 12,416,709.28/x
  3. Step 3: Cross multiply
    12,416,709.28x = 18,741,683.08 × 12,416,709.28
  4. Step 4: Simplify right side
    12,416,709.28x = 232,710,030,222,254.94
  5. Step 5: Solve for x
    x = 232,710,030,222,254.94/12,416,709.28
  6. Step 6: Final answer
    x = 18,741,683.08

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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.