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Finding the Fourth Proportional to 28,742,759.60, 43,114,139.40 and 18,539,092.40

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Solution

The fourth proportional to 28,742,759.60, 43,114,139.40 and 18,539,092.40 is: 27,808,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742,759.60 : 43,114,139.40 = 18,539,092.40 : x
  2. Step 2: Convert to fraction form
    28,742,759.60/43,114,139.40 = 18,539,092.40/x
  3. Step 3: Cross multiply
    28,742,759.60x = 43,114,139.40 × 18,539,092.40
  4. Step 4: Simplify right side
    28,742,759.60x = 799,297,014,083,080.50
  5. Step 5: Solve for x
    x = 799,297,014,083,080.50/28,742,759.60
  6. Step 6: Final answer
    x = 27,808,638.60

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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.