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Finding the Fourth Proportional to 18,068,643.51, 24,934,553.55 and 9,808,528.59

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Solution

The fourth proportional to 18,068,643.51, 24,934,553.55 and 9,808,528.59 is: 13,535,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068,643.51 : 24,934,553.55 = 9,808,528.59 : x
  2. Step 2: Convert to fraction form
    18,068,643.51/24,934,553.55 = 9,808,528.59/x
  3. Step 3: Cross multiply
    18,068,643.51x = 24,934,553.55 × 9,808,528.59
  4. Step 4: Simplify right side
    18,068,643.51x = 244,571,281,374,061
  5. Step 5: Solve for x
    x = 244,571,281,374,061/18,068,643.51
  6. Step 6: Final answer
    x = 13,535,674.73

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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.