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Finding the Fourth Proportional to 6,335,107.65, 8,749,665.65 and 4,294,374.21

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Solution

The fourth proportional to 6,335,107.65, 8,749,665.65 and 4,294,374.21 is: 5,931,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,335,107.65 : 8,749,665.65 = 4,294,374.21 : x
  2. Step 2: Convert to fraction form
    6,335,107.65/8,749,665.65 = 4,294,374.21/x
  3. Step 3: Cross multiply
    6,335,107.65x = 8,749,665.65 × 4,294,374.21
  4. Step 4: Simplify right side
    6,335,107.65x = 37,574,338,492,011.02
  5. Step 5: Solve for x
    x = 37,574,338,492,011.02/6,335,107.65
  6. Step 6: Final answer
    x = 5,931,128.65

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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.