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Finding the Fourth Proportional to 12,973,349.63, 17,900,252.30 and 7,745,340.30

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Solution

The fourth proportional to 12,973,349.63, 17,900,252.30 and 7,745,340.30 is: 10,686,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973,349.63 : 17,900,252.30 = 7,745,340.30 : x
  2. Step 2: Convert to fraction form
    12,973,349.63/17,900,252.30 = 7,745,340.30/x
  3. Step 3: Cross multiply
    12,973,349.63x = 17,900,252.30 × 7,745,340.30
  4. Step 4: Simplify right side
    12,973,349.63x = 138,643,545,480,631
  5. Step 5: Solve for x
    x = 138,643,545,480,631/12,973,349.63
  6. Step 6: Final answer
    x = 10,686,796.35

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1.5x scale

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.