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Finding the Fourth Proportional to 15,678,465.30, 23,517,697.95 and 15,678,465.30

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Solution

The fourth proportional to 15,678,465.30, 23,517,697.95 and 15,678,465.30 is: 23,517,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,465.30 : 23,517,697.95 = 15,678,465.30 : x
  2. Step 2: Convert to fraction form
    15,678,465.30/23,517,697.95 = 15,678,465.30/x
  3. Step 3: Cross multiply
    15,678,465.30x = 23,517,697.95 × 15,678,465.30
  4. Step 4: Simplify right side
    15,678,465.30x = 368,721,411,244,956.12
  5. Step 5: Solve for x
    x = 368,721,411,244,956.12/15,678,465.30
  6. Step 6: Final answer
    x = 23,517,697.95

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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.