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Finding the Fourth Proportional to 6,697,873.80, 10,046,810.70 and 6,650,634.60

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Solution

The fourth proportional to 6,697,873.80, 10,046,810.70 and 6,650,634.60 is: 9,975,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,697,873.80 : 10,046,810.70 = 6,650,634.60 : x
  2. Step 2: Convert to fraction form
    6,697,873.80/10,046,810.70 = 6,650,634.60/x
  3. Step 3: Cross multiply
    6,697,873.80x = 10,046,810.70 × 6,650,634.60
  4. Step 4: Simplify right side
    6,697,873.80x = 66,817,666,861,070.21
  5. Step 5: Solve for x
    x = 66,817,666,861,070.21/6,697,873.80
  6. Step 6: Final answer
    x = 9,975,951.90

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1.5x scale

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.