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Finding the Fourth Proportional to 19,184,428.65, 28,776,642.98 and 19,184,428.65

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Solution

The fourth proportional to 19,184,428.65, 28,776,642.98 and 19,184,428.65 is: 28,776,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184,428.65 : 28,776,642.98 = 19,184,428.65 : x
  2. Step 2: Convert to fraction form
    19,184,428.65/28,776,642.98 = 19,184,428.65/x
  3. Step 3: Cross multiply
    19,184,428.65x = 28,776,642.98 × 19,184,428.65
  4. Step 4: Simplify right side
    19,184,428.65x = 552,063,453,940,411.25
  5. Step 5: Solve for x
    x = 552,063,453,940,411.25/19,184,428.65
  6. Step 6: Final answer
    x = 28,776,642.98

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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.