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Finding the Fourth Proportional to 6,668,739.90, 9,202,870.14 and 3,612,954.15

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Solution

The fourth proportional to 6,668,739.90, 9,202,870.14 and 3,612,954.15 is: 4,985,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668,739.90 : 9,202,870.14 = 3,612,954.15 : x
  2. Step 2: Convert to fraction form
    6,668,739.90/9,202,870.14 = 3,612,954.15/x
  3. Step 3: Cross multiply
    6,668,739.90x = 9,202,870.14 × 3,612,954.15
  4. Step 4: Simplify right side
    6,668,739.90x = 33,249,547,864,224.08
  5. Step 5: Solve for x
    x = 33,249,547,864,224.08/6,668,739.90
  6. Step 6: Final answer
    x = 4,985,881.65

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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.