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Finding the Fourth Proportional to 10,656,447.60, 15,984,671.40 and 7,066,268.40

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Solution

The fourth proportional to 10,656,447.60, 15,984,671.40 and 7,066,268.40 is: 10,599,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,447.60 : 15,984,671.40 = 7,066,268.40 : x
  2. Step 2: Convert to fraction form
    10,656,447.60/15,984,671.40 = 7,066,268.40/x
  3. Step 3: Cross multiply
    10,656,447.60x = 15,984,671.40 × 7,066,268.40
  4. Step 4: Simplify right side
    10,656,447.60x = 112,951,978,398,203.77
  5. Step 5: Solve for x
    x = 112,951,978,398,203.77/10,656,447.60
  6. Step 6: Final answer
    x = 10,599,402.60

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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.