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Finding the Fourth Proportional to 10,551,009.20, 14,805,005.20 and 10,551,009.20

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Solution

The fourth proportional to 10,551,009.20, 14,805,005.20 and 10,551,009.20 is: 14,805,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551,009.20 : 14,805,005.20 = 10,551,009.20 : x
  2. Step 2: Convert to fraction form
    10,551,009.20/14,805,005.20 = 10,551,009.20/x
  3. Step 3: Cross multiply
    10,551,009.20x = 14,805,005.20 × 10,551,009.20
  4. Step 4: Simplify right side
    10,551,009.20x = 156,207,746,071,247.81
  5. Step 5: Solve for x
    x = 156,207,746,071,247.81/10,551,009.20
  6. Step 6: Final answer
    x = 14,805,005.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.