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Finding the Fourth Proportional to 8,077,605.60, 12,101,662.80 and 4,922,047.20

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Solution

The fourth proportional to 8,077,605.60, 12,101,662.80 and 4,922,047.20 is: 7,374,085.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077,605.60 : 12,101,662.80 = 4,922,047.20 : x
  2. Step 2: Convert to fraction form
    8,077,605.60/12,101,662.80 = 4,922,047.20/x
  3. Step 3: Cross multiply
    8,077,605.60x = 12,101,662.80 × 4,922,047.20
  4. Step 4: Simplify right side
    8,077,605.60x = 59,564,955,500,084.16
  5. Step 5: Solve for x
    x = 59,564,955,500,084.16/8,077,605.60
  6. Step 6: Final answer
    x = 7,374,085.64

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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.