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Finding the Fourth Proportional to 32,718,410.40, 49,077,615.60 and 20,803,965.60

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Solution

The fourth proportional to 32,718,410.40, 49,077,615.60 and 20,803,965.60 is: 31,205,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,718,410.40 : 49,077,615.60 = 20,803,965.60 : x
  2. Step 2: Convert to fraction form
    32,718,410.40/49,077,615.60 = 20,803,965.60/x
  3. Step 3: Cross multiply
    32,718,410.40x = 49,077,615.60 × 20,803,965.60
  4. Step 4: Simplify right side
    32,718,410.40x = 1,021,009,026,672,423.50
  5. Step 5: Solve for x
    x = 1,021,009,026,672,423.50/32,718,410.40
  6. Step 6: Final answer
    x = 31,205,948.40

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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.