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Finding the Fourth Proportional to 9,958,901.60, 14,938,352.40 and 9,864,423.20

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Solution

The fourth proportional to 9,958,901.60, 14,938,352.40 and 9,864,423.20 is: 14,796,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958,901.60 : 14,938,352.40 = 9,864,423.20 : x
  2. Step 2: Convert to fraction form
    9,958,901.60/14,938,352.40 = 9,864,423.20/x
  3. Step 3: Cross multiply
    9,958,901.60x = 14,938,352.40 × 9,864,423.20
  4. Step 4: Simplify right side
    9,958,901.60x = 147,358,229,984,335.69
  5. Step 5: Solve for x
    x = 147,358,229,984,335.69/9,958,901.60
  6. Step 6: Final answer
    x = 14,796,634.80

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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.