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Finding the Fourth Proportional to 7,243,551.60, 10,865,327.40 and 6,074,381.40

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Solution

The fourth proportional to 7,243,551.60, 10,865,327.40 and 6,074,381.40 is: 9,111,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,551.60 : 10,865,327.40 = 6,074,381.40 : x
  2. Step 2: Convert to fraction form
    7,243,551.60/10,865,327.40 = 6,074,381.40/x
  3. Step 3: Cross multiply
    7,243,551.60x = 10,865,327.40 × 6,074,381.40
  4. Step 4: Simplify right side
    7,243,551.60x = 66,000,142,663,470.37
  5. Step 5: Solve for x
    x = 66,000,142,663,470.37/7,243,551.60
  6. Step 6: Final answer
    x = 9,111,572.10

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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.