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Finding the Fourth Proportional to 11,869,718.60, 17,804,577.90 and 10,771,407.20

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Solution

The fourth proportional to 11,869,718.60, 17,804,577.90 and 10,771,407.20 is: 16,157,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869,718.60 : 17,804,577.90 = 10,771,407.20 : x
  2. Step 2: Convert to fraction form
    11,869,718.60/17,804,577.90 = 10,771,407.20/x
  3. Step 3: Cross multiply
    11,869,718.60x = 17,804,577.90 × 10,771,407.20
  4. Step 4: Simplify right side
    11,869,718.60x = 191,780,358,585,020.84
  5. Step 5: Solve for x
    x = 191,780,358,585,020.84/11,869,718.60
  6. Step 6: Final answer
    x = 16,157,110.80

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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.