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Finding the Fourth Proportional to 77,572.46, 107,061.58 and 47,375.16

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Solution

The fourth proportional to 77,572.46, 107,061.58 and 47,375.16 is: 65,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.46 : 107,061.58 = 47,375.16 : x
  2. Step 2: Convert to fraction form
    77,572.46/107,061.58 = 47,375.16/x
  3. Step 3: Cross multiply
    77,572.46x = 107,061.58 × 47,375.16
  4. Step 4: Simplify right side
    77,572.46x = 5,072,059,482.35
  5. Step 5: Solve for x
    x = 5,072,059,482.35/77,572.46
  6. Step 6: Final answer
    x = 65,384.80

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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.