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Finding the Fourth Proportional to 8,674,690.80, 11,971,142.64 and 4,807,276.14

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Solution

The fourth proportional to 8,674,690.80, 11,971,142.64 and 4,807,276.14 is: 6,634,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674,690.80 : 11,971,142.64 = 4,807,276.14 : x
  2. Step 2: Convert to fraction form
    8,674,690.80/11,971,142.64 = 4,807,276.14/x
  3. Step 3: Cross multiply
    8,674,690.80x = 11,971,142.64 × 4,807,276.14
  4. Step 4: Simplify right side
    8,674,690.80x = 57,548,588,381,808.61
  5. Step 5: Solve for x
    x = 57,548,588,381,808.61/8,674,690.80
  6. Step 6: Final answer
    x = 6,634,079.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.