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Finding the Fourth Proportional to 8,977,648.42, 13,468,364.99 and 2,911,908.25

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Solution

The fourth proportional to 8,977,648.42, 13,468,364.99 and 2,911,908.25 is: 4,368,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977,648.42 : 13,468,364.99 = 2,911,908.25 : x
  2. Step 2: Convert to fraction form
    8,977,648.42/13,468,364.99 = 2,911,908.25/x
  3. Step 3: Cross multiply
    8,977,648.42x = 13,468,364.99 × 2,911,908.25
  4. Step 4: Simplify right side
    8,977,648.42x = 39,218,643,128,392.17
  5. Step 5: Solve for x
    x = 39,218,643,128,392.17/8,977,648.42
  6. Step 6: Final answer
    x = 4,368,476.16

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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.