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Finding the Fourth Proportional to 34,339,972.80, 51,509,959.20 and 10,402,334.40

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Solution

The fourth proportional to 34,339,972.80, 51,509,959.20 and 10,402,334.40 is: 15,603,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,339,972.80 : 51,509,959.20 = 10,402,334.40 : x
  2. Step 2: Convert to fraction form
    34,339,972.80/51,509,959.20 = 10,402,334.40/x
  3. Step 3: Cross multiply
    34,339,972.80x = 51,509,959.20 × 10,402,334.40
  4. Step 4: Simplify right side
    34,339,972.80x = 535,823,820,528,756.50
  5. Step 5: Solve for x
    x = 535,823,820,528,756.50/34,339,972.80
  6. Step 6: Final answer
    x = 15,603,501.60

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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.