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Finding the Fourth Proportional to 9,929,920.80, 14,894,881.20 and 9,468,026.40

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Solution

The fourth proportional to 9,929,920.80, 14,894,881.20 and 9,468,026.40 is: 14,202,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929,920.80 : 14,894,881.20 = 9,468,026.40 : x
  2. Step 2: Convert to fraction form
    9,929,920.80/14,894,881.20 = 9,468,026.40/x
  3. Step 3: Cross multiply
    9,929,920.80x = 14,894,881.20 × 9,468,026.40
  4. Step 4: Simplify right side
    9,929,920.80x = 141,025,128,426,463.69
  5. Step 5: Solve for x
    x = 141,025,128,426,463.69/9,929,920.80
  6. Step 6: Final answer
    x = 14,202,039.60

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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.