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Finding the Fourth Proportional to 10,572,530.40, 15,858,795.60 and 10,026,655.20

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Solution

The fourth proportional to 10,572,530.40, 15,858,795.60 and 10,026,655.20 is: 15,039,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572,530.40 : 15,858,795.60 = 10,026,655.20 : x
  2. Step 2: Convert to fraction form
    10,572,530.40/15,858,795.60 = 10,026,655.20/x
  3. Step 3: Cross multiply
    10,572,530.40x = 15,858,795.60 × 10,026,655.20
  4. Step 4: Simplify right side
    10,572,530.40x = 159,010,675,368,477.09
  5. Step 5: Solve for x
    x = 159,010,675,368,477.09/10,572,530.40
  6. Step 6: Final answer
    x = 15,039,982.80

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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.