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Finding the Fourth Proportional to 18,590,683.01, 25,655,409.50 and 10,218,828.17

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Solution

The fourth proportional to 18,590,683.01, 25,655,409.50 and 10,218,828.17 is: 14,102,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,683.01 : 25,655,409.50 = 10,218,828.17 : x
  2. Step 2: Convert to fraction form
    18,590,683.01/25,655,409.50 = 10,218,828.17/x
  3. Step 3: Cross multiply
    18,590,683.01x = 25,655,409.50 × 10,218,828.17
  4. Step 4: Simplify right side
    18,590,683.01x = 262,168,221,382,010.88
  5. Step 5: Solve for x
    x = 262,168,221,382,010.88/18,590,683.01
  6. Step 6: Final answer
    x = 14,102,129.62

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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.