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Finding the Fourth Proportional to 56,376.04, 77,824.74 and 42,275.56

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Solution

The fourth proportional to 56,376.04, 77,824.74 and 42,275.56 is: 58,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.04 : 77,824.74 = 42,275.56 : x
  2. Step 2: Convert to fraction form
    56,376.04/77,824.74 = 42,275.56/x
  3. Step 3: Cross multiply
    56,376.04x = 77,824.74 × 42,275.56
  4. Step 4: Simplify right side
    56,376.04x = 3,290,084,465.35
  5. Step 5: Solve for x
    x = 3,290,084,465.35/56,376.04
  6. Step 6: Final answer
    x = 58,359.62

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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.