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Finding the Fourth Proportional to 14,367,807.70, 21,551,711.55 and 11,816,890.90

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Solution

The fourth proportional to 14,367,807.70, 21,551,711.55 and 11,816,890.90 is: 17,725,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,367,807.70 : 21,551,711.55 = 11,816,890.90 : x
  2. Step 2: Convert to fraction form
    14,367,807.70/21,551,711.55 = 11,816,890.90/x
  3. Step 3: Cross multiply
    14,367,807.70x = 21,551,711.55 × 11,816,890.90
  4. Step 4: Simplify right side
    14,367,807.70x = 254,674,224,094,619.91
  5. Step 5: Solve for x
    x = 254,674,224,094,619.91/14,367,807.70
  6. Step 6: Final answer
    x = 17,725,336.35

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Similar ratio
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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.