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Finding the Fourth Proportional to 7,668,059.60, 11,497,715.40 and 2,875,905.20

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Solution

The fourth proportional to 7,668,059.60, 11,497,715.40 and 2,875,905.20 is: 4,312,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668,059.60 : 11,497,715.40 = 2,875,905.20 : x
  2. Step 2: Convert to fraction form
    7,668,059.60/11,497,715.40 = 2,875,905.20/x
  3. Step 3: Cross multiply
    7,668,059.60x = 11,497,715.40 × 2,875,905.20
  4. Step 4: Simplify right side
    7,668,059.60x = 33,066,339,506,980.08
  5. Step 5: Solve for x
    x = 33,066,339,506,980.08/7,668,059.60
  6. Step 6: Final answer
    x = 4,312,217.33

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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.