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Finding the Fourth Proportional to 9,965,807.60, 14,948,711.40 and 8,706,095.60

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Solution

The fourth proportional to 9,965,807.60, 14,948,711.40 and 8,706,095.60 is: 13,059,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,807.60 : 14,948,711.40 = 8,706,095.60 : x
  2. Step 2: Convert to fraction form
    9,965,807.60/14,948,711.40 = 8,706,095.60/x
  3. Step 3: Cross multiply
    9,965,807.60x = 14,948,711.40 × 8,706,095.60
  4. Step 4: Simplify right side
    9,965,807.60x = 130,144,910,545,209.84
  5. Step 5: Solve for x
    x = 130,144,910,545,209.84/9,965,807.60
  6. Step 6: Final answer
    x = 13,059,143.40

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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.