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Finding the Fourth Proportional to 12,888,803.74, 19,329,070.66 and 4,250,962.32

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Solution

The fourth proportional to 12,888,803.74, 19,329,070.66 and 4,250,962.32 is: 6,375,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,803.74 : 19,329,070.66 = 4,250,962.32 : x
  2. Step 2: Convert to fraction form
    12,888,803.74/19,329,070.66 = 4,250,962.32/x
  3. Step 3: Cross multiply
    12,888,803.74x = 19,329,070.66 × 4,250,962.32
  4. Step 4: Simplify right side
    12,888,803.74x = 82,167,151,056,277.53
  5. Step 5: Solve for x
    x = 82,167,151,056,277.53/12,888,803.74
  6. Step 6: Final answer
    x = 6,375,079.70

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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.