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Finding the Fourth Proportional to 64,897.47, 89,559.54 and 36,603.72

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Solution

The fourth proportional to 64,897.47, 89,559.54 and 36,603.72 is: 50,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.47 : 89,559.54 = 36,603.72 : x
  2. Step 2: Convert to fraction form
    64,897.47/89,559.54 = 36,603.72/x
  3. Step 3: Cross multiply
    64,897.47x = 89,559.54 × 36,603.72
  4. Step 4: Simplify right side
    64,897.47x = 3,278,212,325.49
  5. Step 5: Solve for x
    x = 3,278,212,325.49/64,897.47
  6. Step 6: Final answer
    x = 50,513.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.