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Finding the Fourth Proportional to 64,412.19, 88,888.82 and 36,117.88

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Solution

The fourth proportional to 64,412.19, 88,888.82 and 36,117.88 is: 49,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,412.19 : 88,888.82 = 36,117.88 : x
  2. Step 2: Convert to fraction form
    64,412.19/88,888.82 = 36,117.88/x
  3. Step 3: Cross multiply
    64,412.19x = 88,888.82 × 36,117.88
  4. Step 4: Simplify right side
    64,412.19x = 3,210,475,734.10
  5. Step 5: Solve for x
    x = 3,210,475,734.10/64,412.19
  6. Step 6: Final answer
    x = 49,842.67

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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.