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Finding the Fourth Proportional to 14,506,843.53, 20,018,811.65 and 7,980,059.01

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Solution

The fourth proportional to 14,506,843.53, 20,018,811.65 and 7,980,059.01 is: 11,012,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506,843.53 : 20,018,811.65 = 7,980,059.01 : x
  2. Step 2: Convert to fraction form
    14,506,843.53/20,018,811.65 = 7,980,059.01/x
  3. Step 3: Cross multiply
    14,506,843.53x = 20,018,811.65 × 7,980,059.01
  4. Step 4: Simplify right side
    14,506,843.53x = 159,751,298,237,175.16
  5. Step 5: Solve for x
    x = 159,751,298,237,175.16/14,506,843.53
  6. Step 6: Final answer
    x = 11,012,133.54

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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.