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Finding the Fourth Proportional to 64,752.48, 89,352.72 and 36,070.92

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Solution

The fourth proportional to 64,752.48, 89,352.72 and 36,070.92 is: 49,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,752.48 : 89,352.72 = 36,070.92 : x
  2. Step 2: Convert to fraction form
    64,752.48/89,352.72 = 36,070.92/x
  3. Step 3: Cross multiply
    64,752.48x = 89,352.72 × 36,070.92
  4. Step 4: Simplify right side
    64,752.48x = 3,223,034,814.90
  5. Step 5: Solve for x
    x = 3,223,034,814.90/64,752.48
  6. Step 6: Final answer
    x = 49,774.69

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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.