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Finding the Fourth Proportional to 8,688,581.64, 13,034,978.06 and 2,622,950.51

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Solution

The fourth proportional to 8,688,581.64, 13,034,978.06 and 2,622,950.51 is: 3,935,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,581.64 : 13,034,978.06 = 2,622,950.51 : x
  2. Step 2: Convert to fraction form
    8,688,581.64/13,034,978.06 = 2,622,950.51/x
  3. Step 3: Cross multiply
    8,688,581.64x = 13,034,978.06 × 2,622,950.51
  4. Step 4: Simplify right side
    8,688,581.64x = 34,190,102,272,026.16
  5. Step 5: Solve for x
    x = 34,190,102,272,026.16/8,688,581.64
  6. Step 6: Final answer
    x = 3,935,061.40

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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.