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Finding the Fourth Proportional to 7,886,712.60, 11,830,068.90 and 2,836,200.60

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Solution

The fourth proportional to 7,886,712.60, 11,830,068.90 and 2,836,200.60 is: 4,254,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886,712.60 : 11,830,068.90 = 2,836,200.60 : x
  2. Step 2: Convert to fraction form
    7,886,712.60/11,830,068.90 = 2,836,200.60/x
  3. Step 3: Cross multiply
    7,886,712.60x = 11,830,068.90 × 2,836,200.60
  4. Step 4: Simplify right side
    7,886,712.60x = 33,552,448,512,221.34
  5. Step 5: Solve for x
    x = 33,552,448,512,221.34/7,886,712.60
  6. Step 6: Final answer
    x = 4,254,300.90

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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.