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Finding the Fourth Proportional to 13,659,672.04, 18,849,607.32 and 7,547,706.88

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Solution

The fourth proportional to 13,659,672.04, 18,849,607.32 and 7,547,706.88 is: 10,415,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659,672.04 : 18,849,607.32 = 7,547,706.88 : x
  2. Step 2: Convert to fraction form
    13,659,672.04/18,849,607.32 = 7,547,706.88/x
  3. Step 3: Cross multiply
    13,659,672.04x = 18,849,607.32 × 7,547,706.88
  4. Step 4: Simplify right side
    13,659,672.04x = 142,271,310,760,214.31
  5. Step 5: Solve for x
    x = 142,271,310,760,214.31/13,659,672.04
  6. Step 6: Final answer
    x = 10,415,426.55

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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.