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Finding the Fourth Proportional to 7,688,785.30, 11,533,177.95 and 7,688,785.30

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Solution

The fourth proportional to 7,688,785.30, 11,533,177.95 and 7,688,785.30 is: 11,533,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688,785.30 : 11,533,177.95 = 7,688,785.30 : x
  2. Step 2: Convert to fraction form
    7,688,785.30/11,533,177.95 = 7,688,785.30/x
  3. Step 3: Cross multiply
    7,688,785.30x = 11,533,177.95 × 7,688,785.30
  4. Step 4: Simplify right side
    7,688,785.30x = 88,676,129,084,244.12
  5. Step 5: Solve for x
    x = 88,676,129,084,244.12/7,688,785.30
  6. Step 6: Final answer
    x = 11,533,177.95

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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.