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Finding the Fourth Proportional to 14,406,275.72, 19,879,582.74 and 7,879,567.88

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Solution

The fourth proportional to 14,406,275.72, 19,879,582.74 and 7,879,567.88 is: 10,873,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406,275.72 : 19,879,582.74 = 7,879,567.88 : x
  2. Step 2: Convert to fraction form
    14,406,275.72/19,879,582.74 = 7,879,567.88/x
  3. Step 3: Cross multiply
    14,406,275.72x = 19,879,582.74 × 7,879,567.88
  4. Step 4: Simplify right side
    14,406,275.72x = 156,642,521,625,906.38
  5. Step 5: Solve for x
    x = 156,642,521,625,906.38/14,406,275.72
  6. Step 6: Final answer
    x = 10,873,214.19

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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.