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Finding the Fourth Proportional to 15,856,813.80, 22,249,927.80 and 15,856,813.80

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Solution

The fourth proportional to 15,856,813.80, 22,249,927.80 and 15,856,813.80 is: 22,249,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856,813.80 : 22,249,927.80 = 15,856,813.80 : x
  2. Step 2: Convert to fraction form
    15,856,813.80/22,249,927.80 = 15,856,813.80/x
  3. Step 3: Cross multiply
    15,856,813.80x = 22,249,927.80 × 15,856,813.80
  4. Step 4: Simplify right side
    15,856,813.80x = 352,812,962,188,043.69
  5. Step 5: Solve for x
    x = 352,812,962,188,043.69/15,856,813.80
  6. Step 6: Final answer
    x = 22,249,927.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.