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Finding the Fourth Proportional to 14,863,811.18, 20,512,017.50 and 8,249,398.32

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Solution

The fourth proportional to 14,863,811.18, 20,512,017.50 and 8,249,398.32 is: 11,384,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863,811.18 : 20,512,017.50 = 8,249,398.32 : x
  2. Step 2: Convert to fraction form
    14,863,811.18/20,512,017.50 = 8,249,398.32/x
  3. Step 3: Cross multiply
    14,863,811.18x = 20,512,017.50 × 8,249,398.32
  4. Step 4: Simplify right side
    14,863,811.18x = 169,211,802,704,310.59
  5. Step 5: Solve for x
    x = 169,211,802,704,310.59/14,863,811.18
  6. Step 6: Final answer
    x = 11,384,146.41

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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.