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Finding the Fourth Proportional to 16,442,652.40, 24,663,978.60 and 15,658,831.60

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Solution

The fourth proportional to 16,442,652.40, 24,663,978.60 and 15,658,831.60 is: 23,488,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,442,652.40 : 24,663,978.60 = 15,658,831.60 : x
  2. Step 2: Convert to fraction form
    16,442,652.40/24,663,978.60 = 15,658,831.60/x
  3. Step 3: Cross multiply
    16,442,652.40x = 24,663,978.60 × 15,658,831.60
  4. Step 4: Simplify right side
    16,442,652.40x = 386,209,087,483,403.75
  5. Step 5: Solve for x
    x = 386,209,087,483,403.75/16,442,652.40
  6. Step 6: Final answer
    x = 23,488,247.40

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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.