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Finding the Fourth Proportional to 19,586,132.70, 27,448,929.30 and 19,586,132.70

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Solution

The fourth proportional to 19,586,132.70, 27,448,929.30 and 19,586,132.70 is: 27,448,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586,132.70 : 27,448,929.30 = 19,586,132.70 : x
  2. Step 2: Convert to fraction form
    19,586,132.70/27,448,929.30 = 19,586,132.70/x
  3. Step 3: Cross multiply
    19,586,132.70x = 27,448,929.30 × 19,586,132.70
  4. Step 4: Simplify right side
    19,586,132.70x = 537,618,371,742,718.12
  5. Step 5: Solve for x
    x = 537,618,371,742,718.12/19,586,132.70
  6. Step 6: Final answer
    x = 27,448,929.30

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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.