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Finding the Fourth Proportional to 5,213,133,041.90, 7,819,699,562.85 and 5,213,133,041.90

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Solution

The fourth proportional to 5,213,133,041.90, 7,819,699,562.85 and 5,213,133,041.90 is: 7,819,699,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213,133,041.90 : 7,819,699,562.85 = 5,213,133,041.90 : x
  2. Step 2: Convert to fraction form
    5,213,133,041.90/7,819,699,562.85 = 5,213,133,041.90/x
  3. Step 3: Cross multiply
    5,213,133,041.90x = 7,819,699,562.85 × 5,213,133,041.90
  4. Step 4: Simplify right side
    5,213,133,041.90x = 40,765,134,168,824,315,904
  5. Step 5: Solve for x
    x = 40,765,134,168,824,315,904/5,213,133,041.90
  6. Step 6: Final answer
    x = 7,819,699,562.85

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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.